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Tuma J, Silva F, Winters A, Bartlett C, Patel A. Optimized Mesenchymal Stem Cell Therapy for Chronic Obstructive Pulmonary Disease. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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77
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Patel A, Theisen J, Winters A, Grainger D, Silva F, Bull D. Three-Dimensional Human-Heart Derived Scaffolds. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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78
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Sargento-Freitas J, Laranjinha I, Galego O, Rebelo-Ferreira A, Moura B, Correia M, Silva F, Machado C, Cordeiro G, Cunha L. Nocturnal blood pressure dipping in acute ischemic stroke. Acta Neurol Scand 2015; 132:323-8. [DOI: 10.1111/ane.12402] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2015] [Indexed: 11/29/2022]
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Valois M, Silva F. A new species of Golinca Thomson (Coleoptera: Scarabaeidae: Cetoniinae): first record of the genus for Brazil. Zootaxa 2015; 3919:192-6. [PMID: 25781124 DOI: 10.11646/zootaxa.3919.1.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Indexed: 11/04/2022]
Abstract
Golinca trevisani Valois & Silva, new species (Coleoptera: Scarabaeidae: Cetoniinae: Trichiini: Incina) from Ouro Preto do Oeste, Rondônia, and Amazonas, Brazil is described, representing the first record of the genus Golinca for Brazil. Diagnosis, illustrations of key morphological characters, the first male genitalia description in the genus, and a key for identification of four species of Golinca are provided.
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Cortegaça P, Silva F, Viana D, Ramos R, Martins J. Economic Evaluation In Portugal - Establishment of The National Health Technology Assessment System (Sinats). VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A452. [PMID: 27201244 DOI: 10.1016/j.jval.2014.08.1226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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81
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Cousin SL, Silva F, Teichmann S, Hemmer M, Buades B, Biegert J. High-flux table-top soft x-ray source driven by sub-2-cycle, CEP stable, 1.85-μm 1-kHz pulses for carbon K-edge spectroscopy. OPTICS LETTERS 2014; 39:5383-6. [PMID: 26466278 DOI: 10.1364/ol.39.005383] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We report on the first table-top high-flux source of coherent soft x-ray radiation up to 400 eV, operating at 1 kHz. This source covers the carbon K-edge with a beam brilliance of (4.3±1.2)×10(15) photons/s/mm(2)/strad/10% bandwidth and a photon flux of (1.85±0.12)×10(7) photons/s/1% bandwidth. We use this source to demonstrate table-top x-ray near-edge fine-structure spectroscopy at the carbon K-edge of a polyimide foil and retrieve the specific absorption features corresponding to the binding orbitals of the carbon atoms in the foil.
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Silva F, Melo S, Abreu J, Manso H, Manso Filho H. A Standardised Gaited Field Test Produces Changes in Blood Biomarkers and Heart Rate in Four-Beat Gaited Horses. Equine Vet J 2014. [DOI: 10.1111/evj.12267_58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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83
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Espírito Santo GM, Pedro AQ, Oppolzer D, Bonifácio MJ, Queiroz JA, Silva F, Passarinha LA. Development of fed-batch profiles for efficient biosynthesis of catechol- O-methyltransferase. ACTA ACUST UNITED AC 2014. [PMID: 28626646 PMCID: PMC5466112 DOI: 10.1016/j.btre.2014.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Constant feeds perform better than exponential feeds for hSCOMT production. A constant feed of 1 g/L/h yielded 40 OD600 and a hSCOMT activity of 442 nmol/h/mg. A high percentage of viability was maintained in constant fed-batch fermentations.
Catechol-O-methyltransferase (COMT, EC 2.1.1.6) plays a crucial role in dopamine metabolism which has intimately linked this enzyme to some neurodegenerative diseases, such as Parkinson's disease. In recent years, in the attempt of developing new therapeutic strategies for Parkinson's disease, there has been a growing interest in the search for effective COMT inhibitors. In order to do so, large amounts of COMT in an active form are needed, and the best way to achieve this is by up-scaling its production through biotechnological processes. In this work, a fed-batch process for the biosynthesis of the soluble isoform of COMT in Escherichia coli is proposed. This final process was selected through the evaluation of the effect of different dissolved oxygen concentrations, carbon and nitrogen source concentrations and feeding profiles on enzymatic production and cell viability, while controlling various parameters (pH, temperature, starting time of the feeding and induction phases and carbon source concentration) during the process. After several batch and fed-batch experiments, a final specific COMT activity of 442.34 nmol/h/mg with approximately 80% of viable cells at the end of the fermentation were achieved. Overall, the results described herein provide a great improvement on hSCOMT production in recombinant bacteria and provide a new and viable option for the use of a fed-batch fermentation with a constant feeding profile to the large scale production of this enzyme.
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84
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Bull D, Vargas V, Silva F, Patel A. Novel metabolically active human renal multi-potent cells. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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85
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Johnston C, Silva F, Walker R, Warbington T, Patel A. Next generation xenogenic-free biologics/reagents. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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86
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Won Y, Silva F, Lim K, Kim S, Bull D, Patel A. Cell surface engineering to enhance mesenchymal stem cell migration towards SDF-1 for ischemic tissue. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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87
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Moncada G, Silva F, Angel P, Oliveira OB, Fresno MC, Cisternas P, Fernandez E, Estay J, Martin J. Evaluation of Dental Restorations: A Comparative Study Between Clinical and Digital Photographic Assessments. Oper Dent 2014; 39:E45-56. [DOI: 10.2341/12-339-c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
SUMMARY
The aim of this study was to compare the efficacy of a direct clinical evaluation method with an indirect digital photographic method in assessing the quality of dental restorations. Seven parameters (color, occlusal marginal adaptation, anatomy form, roughness, occlusal marginal stain, luster, and secondary caries) were assessed in 89 Class I and Class II restorations from 36 adults using the modified US Public Health Service/Ryge criteria. Standardized photographs of the same restorations were digitally processed by Adobe Photoshop software, separated into the following four groups and assessed by two calibrated examiners: Group A: The original photograph displayed at 100%, without modifications (IMG100); Group B: Formed by images enlarged at 150% (IMG150); Group C: Formed by digital photographs displayed at 100% (mIMG100), with digital modifications (levels adjustment, shadow and highlight correction, color balance, unsharp Mask); and Group D: Formed by enlarged photographs displayed at 150% with modifications (mIMG150), with the same adjustments made to Group C. Photographs were assessed on a calibrated screen (Macbook) by two calibrated clinicians, and the results were statistically analyzed using Wilcoxon tests (SSPS 11.5) at 95% CI. Results: The photographic method produced higher reliability levels than the direct clinical method in all parameters. The evaluation of digital images is more consistent with clinical assessment when restorations present some moderate defect (Bravo) and less consistent when restorations are clinically classified as either satisfactory (Alpha) or in cases of severe defects (Charlie). Conclusion: The digital photographic method is a useful tool for assessing the quality of dental restorations, providing information that goes unnoticed with the visual-tactile clinical examination method. Additionally, when analyzing restorations using the Ryge modified criteria, the digital photographic method reveals a significant increase of defects compared to those clinically observed with the naked eye. Photography by itself, without the need for enlargement or correction, provides more information than clinical examination and can lead to unnecessary overtreatment.
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Silva F, Vergez C, Guillemain P, Kergomard J, Debut V. MoReeSC: A Framework for the Simulation and Analysis of Sound Production in Reed and Brass Instruments. ACTA ACUST UNITED AC 2014. [DOI: 10.3813/aaa.918693] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Viana AFSC, Fernandes HB, Silva FV, Oliveira IS, Freitas FFBP, Machado FDF, Costa CLS, Arcanjo DDR, Chaves MH, Oliveira FA, Oliveira RCM. Gastroprotective activity of Cenostigma macrophyllum Tul. var. acuminata Teles Freire leaves on experimental ulcer models. JOURNAL OF ETHNOPHARMACOLOGY 2013; 150:316-323. [PMID: 24035848 DOI: 10.1016/j.jep.2013.08.047] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 08/23/2013] [Accepted: 08/25/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cenostigma macrophyllum Tul. var. acuminata Teles Freire (Leguminosae-Caesalpinioideae), popularly known in Brazil as "caneleiro", is widely used in folk medicine against gastrointestinal diseases. In previous studies, the ethanol extract of leaves from Cenostigma macrophyllum Tul. var. acuminata Teles Freire had shown antinociceptive, anti-inflammatory, antibacterial, antioxidant and antiulcerogenic activities. AIM OF THE STUDY The aim of this study was to assess the gastroprotective effect of the hydroalcoholic fraction of leaves of Cenostigma macrophyllum Tul. var. acuminata Teles Freire (Cm-FHA), as well as to elucidate the possible underlying mechanisms of action. MATERIALS AND METHODS Mice were used for the evaluation of the acute toxicity, and mice and rats to study the gastroprotective activity. The potential gastroprotective of Cm-FHA was assessed on different gastric ulcer models in rodents, such as absolute ethanol, HCl/ethanol, ischemia-reperfusion, cold restraint stress and indomethacin. The participation of prostaglandins, NO-synthase pathway and ATP-sensitive potassium channels (KATP) in gastroprotective activity of Cm-FHA were evaluated after treatment with a cyclooxygenase inhibitor (indomethacin), a NO-synthase inhibitor (L-NAME) and a KATP channel blocker (glibenclamide 5mg/kg), respectively. Likewise, the catalase activity was determinated in order to assess the possible participation of antioxidant mechanisms. RESULTS No signs of acute toxicity was observed after oral acute administration of Cm-FHA, considering the analyzed parameters. Likewise, Cm-FHA promoted a protective effect against gastric ulcers induced by absolute ethanol (lesion inhibition by 40% at both 100 and 200mg/kg), HCl/ethanol (lesion inhibition by 50 or 48% at 100 or 200mg/kg, respectively), ischemia-reperfusion (lesion inhibition by 49 or 90% at 100 or 200mg/kg, respectively) and cold restraint stress (lesion inhibition by 63 or 76% at 100 or 200mg/kg, respectively), as well as a increase of catalase activity was observed. Otherwise, Cm-FHA was not able to protect gastric mucosa against indomethacin-induced lesions. Nitric oxide release, the of KATP channels opening and antioxidant activity are the possibly involved in the Cm-FHA-induced gastroprotective activity. CONCLUSION This study corroborates the folk medicine use of Cenostigma macrophyllum for treatment of gastric ulcers, as well as reinforces this species as a valuable source of promising natural drugs with gastroprotective activity.
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Malavera M, Silva F, García R, Quiros J, Dallos M, Pinzón A. Effects of transcranial magnetic stimulation in the treatment of phantom limb pain in landmine /INS;victims: A randomized clinical trial. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1880] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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91
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Ribeiro JA, Silva F, Pereira CM. Electrochemical Sensing of Catecholamines at the Water/ 1,6-Dichlorohexane Interface. ELECTROANAL 2013. [DOI: 10.1002/elan.201300302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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92
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Campagnucci V, Silva A, Pereira W, Peroni A, Chamlian E, Gandra S, Scatolini A, Lourenço U, Silva F, Rivetti L. The use of implantable cardioverter defibrillators in pediatric patients. J Cardiothorac Surg 2013. [PMCID: PMC3844971 DOI: 10.1186/1749-8090-8-s1-o84] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Sachse S, Gendre L, Silva F, Zhu H, Leszczyńska A, Pielichowski K, Ermini V, Njuguna J. On Nanoparticles Release from Polymer Nanocomposites for Applications in Lightweight Automotive Components. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/429/1/012046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Wong S, Silva F, Acheson J, Plant G. An old friend revisited: chloramphenicol optic neuropathy. JRSM SHORT REPORTS 2013; 4:20. [PMID: 23560219 PMCID: PMC3616301 DOI: 10.1177/2042533313476692] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Silva F, Cisternas M, Maguida G, Ruiz M, Diaz P, Gonzalez S, Martinez J, Meneses L, Massardo L. Hemorrhagic emergency due to intrahepatic aneurism rupture in a patient with Polyateritis Nodosa after long time of episodic fever: A case report. Presse Med 2013. [DOI: 10.1016/j.lpm.2013.02.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Díaz P, Faba G, Contreras D, Zunino R, Ortega C, Silva F. Inter-observer reproducibility of two CT scan staging systems to evaluate sinonasal involvement in granulomatosis with polyangiitis (Wegener's). Presse Med 2013. [DOI: 10.1016/j.lpm.2013.02.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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97
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Cisternas M, Lira M, Silva F. Clinical characteristics of ANCA associated vasculitis in hispanic patients: Single centre experience in Chile. Presse Med 2013. [DOI: 10.1016/j.lpm.2013.02.219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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98
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Silva F, Massardo L, Mimica M, Pastenes P, Cisternas M, Radrigan F, Gutierrez M. Use of rituximab in Hispanic patients with severe ANCA associated vasculitis: A 6 years experience in a tertiary centre in Chile. Presse Med 2013. [DOI: 10.1016/j.lpm.2013.02.297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Ribeiro JA, Silva F, Pereira CM. Electrochemical Study of the Anticancer Drug Daunorubicin at a Water/Oil Interface: Drug Lipophilicity and Quantification. Anal Chem 2013; 85:1582-90. [DOI: 10.1021/ac3028245] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Austin DR, Silva F, Thai A, Baudisch M, Hemmer M, Faccio D, Couairon A, Biegert J. Multi-octave supercontinuum generation from mid-infrared filamentation in a bulk crystal. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20134110010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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