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Lackey EP, Moreira L, Norton A, Hemelt ME, Osorno T, Nguyen TM, Macosko EZ, Lee WCA, Hull CA, Regehr WG. Specialized connectivity of molecular layer interneuron subtypes leads to disinhibition and synchronous inhibition of cerebellar Purkinje cells. Neuron 2024:S0896-6273(24)00248-4. [PMID: 38692278 DOI: 10.1016/j.neuron.2024.04.010] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 01/12/2024] [Accepted: 04/08/2024] [Indexed: 05/03/2024]
Abstract
Molecular layer interneurons (MLIs) account for approximately 80% of the inhibitory interneurons in the cerebellar cortex and are vital to cerebellar processing. MLIs are thought to primarily inhibit Purkinje cells (PCs) and suppress the plasticity of synapses onto PCs. MLIs also inhibit, and are electrically coupled to, other MLIs, but the functional significance of these connections is not known. Here, we find that two recently recognized MLI subtypes, MLI1 and MLI2, have a highly specialized connectivity that allows them to serve distinct functional roles. MLI1s primarily inhibit PCs, are electrically coupled to each other, fire synchronously with other MLI1s on the millisecond timescale in vivo, and synchronously pause PC firing. MLI2s are not electrically coupled, primarily inhibit MLI1s and disinhibit PCs, and are well suited to gating cerebellar-dependent behavior and learning. The synchronous firing of electrically coupled MLI1s and disinhibition provided by MLI2s require a major re-evaluation of cerebellar processing.
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Affiliation(s)
| | - Luis Moreira
- Department of Neurobiology, Harvard Medical School, Boston, MA, USA
| | - Aliya Norton
- Department of Neurobiology, Harvard Medical School, Boston, MA, USA
| | - Marie E Hemelt
- Department of Neurobiology, Duke University Medical School, Durham, NC, USA
| | - Tomas Osorno
- Department of Neurobiology, Harvard Medical School, Boston, MA, USA
| | - Tri M Nguyen
- Department of Neurobiology, Harvard Medical School, Boston, MA, USA
| | - Evan Z Macosko
- Department of Neurobiology, Harvard Medical School, Boston, MA, USA; Broad Institute of Harvard and MIT, Stanley Center for Psychiatric Research, Cambridge, MA, USA
| | - Wei-Chung Allen Lee
- Department of Neurobiology, Harvard Medical School, Boston, MA, USA; Kirby Neurobiology Center, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Court A Hull
- Department of Neurobiology, Duke University Medical School, Durham, NC, USA
| | - Wade G Regehr
- Department of Neurobiology, Harvard Medical School, Boston, MA, USA.
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Stewart E, Ford-Dunn S, Bass S, Ede C, Elliott J, Peters D, Caputo R, Moreira L, Savage E, Minton O. Digitally Recording Comfort Observations in the Last Days of Life. Am J Hosp Palliat Care 2024:10499091241234859. [PMID: 38378258 DOI: 10.1177/10499091241234859] [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: 02/22/2024] Open
Abstract
Background: 37.5% of deaths in our area occur in hospital. There are known high unmet needs of adult patients dying in hospital, this unmet need can be reduced by using an individualised care plan and specialist palliative care review. Intervention: In 2022 UHSussex developed an electronic comfort observation chart and individualised care plan, with a centralised dashboard allowing Palliative Care Teams (SPCT) to view trends, target interventions, and a rolling prospective audit. Results: 3000 patients have had their care supported with electronic comfort observations (e-comfort obs). Over 72% of all deaths in the Trust in the last 3 months have been on e-comfort obs, with 2/3 of all deaths in the first 12 months on e-comfort obs. The average length of time on e-comfort obs is 4 days resulting in 70,000 sets of e-comfort obs recorded since launch. Seven percent of e-comfort obs record moderate or severe symptoms. We have identified benefits to people who are dying, those important to them, ward staff, SPCT and on a systems level. Conclusion: E-comfort obs can be successfully embedded in a large acute Trust. This development should improve quality of end of life care in our hospitals both for individuals and for future patients, through on-going targeted education and intervention. Further work is needed to develop the system further including integrating data from electronic prescribing.
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Affiliation(s)
- Eleanor Stewart
- Department of Palliative Medicine, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - Suzanne Ford-Dunn
- Department of Pallaitive Medicine, University Hospitals Sussex NHS Foundation Trust, Worthing, UK
| | - Steve Bass
- Department of Palliative Medicine, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - Charlotte Ede
- Department of Pallaitive Medicine, University Hospitals Sussex NHS Foundation Trust, Worthing, UK
| | - Julie Elliott
- Department of Pallaitive Medicine, University Hospitals Sussex NHS Foundation Trust, Worthing, UK
| | - Debbie Peters
- Department of Pallaitive Medicine, University Hospitals Sussex NHS Foundation Trust, Worthing, UK
| | - Rita Caputo
- Department of Pallaitive Medicine, University Hospitals Sussex NHS Foundation Trust, Worthing, UK
| | - Luis Moreira
- Department of Pallaitive Medicine, University Hospitals Sussex NHS Foundation Trust, Worthing, UK
| | - Emily Savage
- Department of Palliative Care, Royal Sussex County Hospital, Brighton, UK
| | - Ollie Minton
- Department of Pallaitive Medicine, University Hospitals Sussex NHS Foundation Trust, Worthing, UK
- Department of Palliative Care, Royal Sussex County Hospital, Brighton, UK
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Lackey EP, Moreira L, Norton A, Hemelt ME, Osorno T, Nguyen TM, Macosko EZ, Lee WCA, Hull CA, Regehr WG. Cerebellar circuits for disinhibition and synchronous inhibition. bioRxiv 2023:2023.09.15.557934. [PMID: 37745401 PMCID: PMC10516046 DOI: 10.1101/2023.09.15.557934] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
The cerebellar cortex contributes to diverse behaviors by transforming mossy fiber inputs into predictions in the form of Purkinje cell (PC) outputs, and then refining those predictions1. Molecular layer interneurons (MLIs) account for approximately 80% of the inhibitory interneurons in the cerebellar cortex2, and are vital to cerebellar processing1,3. MLIs are thought to primarily inhibit PCs and suppress the plasticity of excitatory synapses onto PCs. MLIs also inhibit, and are electrically coupled to, other MLIs4-7, but the functional significance of these connections is not known1,3. Behavioral studies suggest that cerebellar-dependent learning is gated by disinhibition of PCs, but the source of such disinhibition has not been identified8. Here we find that two recently recognized MLI subtypes2, MLI1 and MLI2, have highly specialized connectivity that allows them to serve very different functional roles. MLI1s primarily inhibit PCs, are electrically coupled to each other, fire synchronously with other MLI1s on the millisecond time scale in vivo, and synchronously pause PC firing. MLI2s are not electrically coupled, they primarily inhibit MLI1s and disinhibit PCs, and are well suited to gating cerebellar-dependent learning8. These findings require a major reevaluation of processing within the cerebellum in which disinhibition, a powerful circuit motif present in the cerebral cortex and elsewhere9-17, greatly increases the computational power and flexibility of the cerebellum. They also suggest that millisecond time scale synchronous firing of electrically-coupled MLI1s helps regulate the output of the cerebellar cortex by synchronously pausing PC firing, which has been shown to evoke precisely-timed firing in PC targets18.
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Affiliation(s)
- Elizabeth P Lackey
- Department of Neurobiology, Harvard Medical School, Boston MA, United States
| | - Luis Moreira
- Department of Neurobiology, Harvard Medical School, Boston MA, United States
| | - Aliya Norton
- Department of Neurobiology, Harvard Medical School, Boston MA, United States
| | - Marie E Hemelt
- Department of Neurobiology, Duke University Medical School, Durham, United States
| | - Tomas Osorno
- Department of Neurobiology, Harvard Medical School, Boston MA, United States
| | - Tri M Nguyen
- Department of Neurobiology, Harvard Medical School, Boston MA, United States
| | - Evan Z Macosko
- Department of Neurobiology, Harvard Medical School, Boston MA, United States
- Broad Institute of Harvard and MIT, Stanley Center for Psychiatric Research, Cambridge, MA, USA
| | - Wei-Chung Allen Lee
- Department of Neurobiology, Harvard Medical School, Boston MA, United States
- Kirby Neurobiology Center, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Court A Hull
- Department of Neurobiology, Duke University Medical School, Durham, United States
| | - Wade G Regehr
- Department of Neurobiology, Harvard Medical School, Boston MA, United States
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Bordin DS, Voynovan IN, Sarsenbaeva AS, Zaytsev OV, Abdulkhakov RA, Bakulina NV, Bakulin IG, Osipenko MF, Livzan MA, Alekseenko SA, Tarasova LV, Tarasova GN, Bogomolov PO, Maev IV, Andreev DN, Abdulkhakov SR, Starostin BD, Bakanova NV, Kononova AG, Kolbasnikov SV, Bueverova EL, Moreira L, Megraud F, O'Morain C, Perez Nyssen O, Gisbert J. [Effectiveness of empirical Helicobacter pylori eradication therapy with furazolidone in Russia: results from the European Registry on Helicobacter pylori Management (Hp-EuReg)]. TERAPEVT ARKH 2023; 95:120-129. [PMID: 37167127 DOI: 10.26442/00403660.2023.02.202107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 03/29/2023] [Indexed: 05/13/2023]
Abstract
BACKGROUND First-line therapy does not always provide a high level of Helicobacter pylori eradication due to the increase of H. pylori resistance to antibiotics; therefore, it remains necessary to identify the most effective rescue treatments. The purpose of this study was to evaluate the efficacy and safety of empirical H. pylori furazolidone-containing regimens. MATERIALS AND METHODS Adult H. pylori infected patients empirically treated with furazolidone-containing eradication regimens were registered in an international, prospective, multicenter non-intervention European registry on H. pylori management (Hp-EuReg). Data were collected at AEG-REDCap e-CRF from 2013 to 2021 and the quality was reviewed. Modified intention-to-treat (mITT) effectiveness analyses were performed. RESULTS Overall 106 patients received empirical furazolidone-containing therapy in Russia. Furazolidone was prescribed in a sequential scheme along with amoxicillin, clarithromycin and a proton pump inhibitor in 68 (64%) cases, triple regimens were prescribed in 28 (26%) patients and quadruple regimens in 10 (9.4%). Treatment duration of 7 days was assigned to 2 (1.9%) patients, 10-day eradication therapy in case of 80 (75%) and 14 days - in 24 (23%) patients. Furazolidone was mainly used in first- (79%) and second-line (21%) regimens. The methods used to diagnose H. pylori infection were: histology (81%), stool antigen test (64%), 13C-urea breath test (6.6%), and rapid urease test (1.9%). The mITT effectiveness of sequential therapy was 100%; 93% with the triple therapy and 75.5% with quadruple therapy. Compliance was reported in 98% of cases. Adverse events were revealed in 5.7% of patients, mostly nausea (3.8%). No serious adverse events were reported. CONCLUSION Furazolidone containing eradication regimens appear to be an effective and safe empirical therapy in Russia.
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Affiliation(s)
- D S Bordin
- Loginov Moscow Clinical Scientific Center
- Yevdokimov Moscow State University of Medicine and Dentistry
- Tver State Medical University
| | | | | | | | | | - N V Bakulina
- Mechnikov North-Western State Medical University
| | - I G Bakulin
- Mechnikov North-Western State Medical University
| | | | | | | | | | | | - P O Bogomolov
- Yevdokimov Moscow State University of Medicine and Dentistry
- Private Medical Center "Universal"
- Vladimirsky Moscow Regional Clinical Research Institute
| | - I V Maev
- Yevdokimov Moscow State University of Medicine and Dentistry
| | - D N Andreev
- Yevdokimov Moscow State University of Medicine and Dentistry
| | | | | | | | | | | | - E L Bueverova
- Sechenov First Moscow State Medical University (Sechenov University)
| | - L Moreira
- Hospital Clínic de Barcelona
- Centro de Investigación Biomédica en Red en Enfermedades Hepáticas y Digestivas (CIBERehd)
- University of Barcelona
| | | | | | - O Perez Nyssen
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd)
- Universidad Autónoma de Madrid (UAM)
| | - J Gisbert
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd)
- Universidad Autónoma de Madrid (UAM)
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Pires AM, Carvalho L, Santos AC, Vilaça AM, Coelho AR, Fernandes F, Moreira L, Lima J, Vieira R, Ferraz MJ, Silva M, Silva P, Matias R, Zorro S, Costa S, Sarandão S, Barros AF. Radiotherapy skin marking with lancets versus electric marking pen - Comfort, satisfaction, effectiveness and cosmesis results from the randomized, double-blind COMFORTATTOO trial. Radiography (Lond) 2023; 29:171-177. [PMID: 36410128 DOI: 10.1016/j.radi.2022.10.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 10/13/2022] [Accepted: 10/28/2022] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Set-up skin markings are performed, in several centers, for radiotherapy (RT) treatments. This study aimed to compare two permanent methods: lancets and an electric marking pen, the Comfort Marker 2.0® (CM). METHODS This was a prospective, unicentric, randomized study. Patients aged 18 years or older referred to our department to receive RT were recruited. Patients were randomly assigned, in a 1:1 ratio, to receive set-up markings using lancets or CM. The markings arrangement followed our departmental protocols. The coprimary endpoints were patients' comfort and effectiveness. Secondary endpoints included radiation therapists (RTTs) satisfaction and cosmesis. RESULTS Between October 2021 and January 2022, 100 patients were enrolled (50 received lancets and 50 CM) and assessed for the comfort and satisfaction outcomes. CM was significantly less painful than the lancets, with 44% and 16% of the patients, respectively, considering the tattooing process painless (RR = 2.75; 95% IC: 1.36 - 5.58). On the RTT-reported satisfaction, CM had significantly easier processes than lancets (98.0% vs. 78.0%, respectively; RR = 1.26; 95% CI: 1.08 - 1.46). For effectiveness and cosmesis assessment, 98 patients were analyzed (48 received lancets and 50 CM). Patients receiving CM had a significantly higher proportion of markings graded as good and excellent compared to those receiving lancets (98.0% and 50.0%, respectively, had ≥75% of the tattoos assessed as good/excellent, RR = 1.96; 95% CI: 1.47 - 2.61). On the cosmetic evaluation, patients receiving CM had significantly better cosmetic markings, with a median score of 4.4 (vs. 3.5 for lancets, p <0.001). CONCLUSION The trial results demonstrated that tattooing with the CM is significantly less painful, more effective, easier to apply, and cosmetically superior to tattooing with lancets. IMPLICATIONS FOR PRACTICE Tattooing with CM allows for better results regarding pain, quality, ease and cosmesis.
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Affiliation(s)
- A M Pires
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal.
| | - L Carvalho
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - A C Santos
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - A M Vilaça
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - A R Coelho
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - F Fernandes
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - L Moreira
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - J Lima
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - R Vieira
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - M J Ferraz
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - M Silva
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - P Silva
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - R Matias
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - S Zorro
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - S Costa
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - S Sarandão
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
| | - A F Barros
- Radiation Oncology Department, Portuguese Institute of Oncology of Porto, R. Dr. António Bernardino de Almeida 865, 4200-072, Porto, Portugal
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Gilman O, Moreira L, Dobromylskyj M, Doran I. A comparison of harmonic and traditional sharp staphylectomy techniques in 15 brachycephalic dogs. J Small Anim Pract 2023; 64:31-34. [PMID: 36178269 DOI: 10.1111/jsap.13548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 06/21/2022] [Accepted: 07/07/2022] [Indexed: 01/21/2023]
Abstract
OBJECTIVES The objective was to compare sharp staphylectomy and staphylectomy using harmonic focus shears, assess surgical time, intraoperative haemorrhage and outcome. Our hypothesis was that harmonic staphylectomy would result in reduced surgical time, decreased intraoperative haemorrhage and greater relative improvement. MATERIALS AND METHODS Dogs that were presented to Highcroft Veterinary Referrals between July 2020 and September 2021 with brachycephalic obstructive airway syndrome and underwent surgical correction were prospectively enrolled. Surgical technique was randomised, and surgical time, staphylectomy time, intraoperative haemorrhage, hospitalisation and change in patients' Cambridge BOAS Grade at a 14-day recheck were recorded. RESULTS Fifteen dogs were enrolled: seven dogs underwent sharp and eight underwent harmonic staphylectomy. Nine patients returned for follow-up, four of seven and five of eight, respectively. Harmonic staphylectomy was associated with less haemorrhage (0 versus 9 cotton buds) and a shorter average staphylectomy time (3 minutes 36 seconds versus 14 minutes 50 seconds). No statistically significant differences were observed in total surgery time, number of nights hospitalised, or change in Cambridge BOAS Grade. An average of 0.68 mm of thermal necrosis was seen at the cut edges of soft palates removed by harmonic staphylectomy. CLINICAL SIGNIFICANCE Harmonic staphylectomy can result in a reduction in staphylectomy time and degree of intraoperative haemorrhage compared to sharp staphylectomy, with no deleterious impact on postoperative recovery or the long-term outcome of patients.
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Affiliation(s)
- O Gilman
- Highcroft Veterinary Referrals, Bristol, BS14 9BE, UK
| | - L Moreira
- Willows Veterinary Centre and Referral Service, West Midlands, B90 4NH, UK
| | | | - I Doran
- Highcroft Veterinary Referrals, Bristol, BS14 9BE, UK
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Houwen BBSL, Hartendorp F, Giotis I, Hazewinkel Y, Fockens P, Walstra TR, Dekker E, van Boeckel P, Boparai K, Borg FT, Carballal S, Cazemier M, Daca M, van Eijk B, Jansen J, Koussoulas V, Kuipers T, van Lelyveld N, Ordas I, Marsman W, Moreira L, Muños FR, Noach L, Pellisé M, Ramsoekh D, Schröder R, van Soest E, van Noorden JT, Tytgat K, van Oosterwijk P, van Putten P, Vehmeijer A, Vries RD, van der Vlugt M, Voogd F, van der Zanden E. Computer-aided classification of colorectal segments during colonoscopy: a deep learning approach based on images of a magnetic endoscopic positioning device. Scand J Gastroenterol 2022; 58:649-655. [PMID: 36458659 DOI: 10.1080/00365521.2022.2151320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
OBJECTIVE Assessment of the anatomical colorectal segment of polyps during colonoscopy is important for treatment and follow-up strategies, but is largely operator dependent. This feasibility study aimed to assess whether, using images of a magnetic endoscope imaging (MEI) positioning device, a deep learning approach can be useful to objectively divide the colorectum into anatomical segments. METHODS Models based on the VGG-16 based convolutional neural network architecture were developed to classify the colorectum into anatomical segments. These models were pre-trained on ImageNet data and further trained using prospectively collected data of the POLAR study in which endoscopists were using MEI (3930 still images and 90,151 video frames). Five-fold cross validation with multiple runs was used to evaluate the overall diagnostic accuracies of the models for colorectal segment classification (divided into a 5-class and 2-class colorectal segment division). The colorectal segment assignment by endoscopists was used as the reference standard. RESULTS For the 5-class colorectal segment division, the best performing model correctly classified the colorectal segment in 753 of the 1196 polyps, corresponding to an overall accuracy of 63%, sensitivity of 63%, specificity of 89% and kappa of 0.47. For the 2-class colorectal segment division, 1112 of the 1196 polyps were correctly classified, corresponding to an accuracy of 93%, sensitivity of 93%, specificity of 90% and kappa of 0.82. CONCLUSION The diagnostic performance of a deep learning approach for colorectal segment classification based on images of a MEI device is yet suboptimal (clinicaltrials.gov: NCT03822390).
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Affiliation(s)
- Britt B S L Houwen
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Center, Location Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Fons Hartendorp
- Department of Computer Science, University of Amsterdam, Amsterdam, the Netherlands
| | - Ioanis Giotis
- ZiuZ Visual Intelligence, Gorredijk, the Netherlands
| | - Yark Hazewinkel
- Department of Gastroenterology and Hepatology, Radboud University Medical Center, Radboud University, Nijmegen, The Netherlands
| | - Paul Fockens
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Center, Location Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Taco R Walstra
- Department of Computer Science, University of Amsterdam, Amsterdam, the Netherlands
| | - Evelien Dekker
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Center, Location Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.,Bergman Clinics Maag & Darm Amsterdam, Amsterdam, The Netherlands
| | | | | | - P. van Boeckel
- Department of Gastroenterology and Hepatology, Sint Antonius Ziekenhuis, Nieuwegein, the Netherlands
| | - K. Boparai
- Department of Gastroenterology and Hepatology, Amstelland Hospital, Amstelveen, the Netherlands
| | - F. ter Borg
- Department of Gastroenterology and Hepatology, Deventer Hospital, Deventer, The Netherlands
| | - S. Carballal
- Department of Gastroenterology and Hepatology, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands
- Department of Gastroenterology, Hospital Clinic of Barcelona, Barcelona, Spain
| | - M. Cazemier
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Institut d‘Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
| | - M. Daca
- Department of Gastroenterology and Hepatology, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands
- Department of Gastroenterology, Hospital Clinic of Barcelona, Barcelona, Spain
| | - B. van Eijk
- Department of Gastroenterology and Hepatology, Spaarne Ziekenhuis, Hoofddorp, the Netherlands
| | - J.M Jansen
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Institut d‘Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Barcelona, Spain
| | - V. Koussoulas
- Department of Gastroenterology and Hepatology, Nij Smellinghe Hospital, Drachten, The Netherlands
| | - T. Kuipers
- Department of Gastroenterology and Hepatology, Amstelland Hospital, Amstelveen, the Netherlands
| | - N. van Lelyveld
- Department of Gastroenterology and Hepatology, Sint Antonius Ziekenhuis, Nieuwegein, the Netherlands
| | - I. Ordas
- Department of Gastroenterology and Hepatology, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands
- Department of Gastroenterology, Hospital Clinic of Barcelona, Barcelona, Spain
| | - W. Marsman
- Department of Gastroenterology and Hepatology, Nij Smellinghe Hospital, Drachten, The Netherlands
| | - L. Moreira
- Department of Gastroenterology and Hepatology, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands
- Department of Gastroenterology, Hospital Clinic of Barcelona, Barcelona, Spain
| | - F.J Rando Muños
- Department of Gastroenterology and Hepatology, Nij Smellinghe Hospital, Drachten, The Netherlands
| | - L. Noach
- Department of Gastroenterology and Hepatology, Amstelland Hospital, Amstelveen, the Netherlands
| | - M. Pellisé
- Department of Gastroenterology and Hepatology, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands
- Department of Gastroenterology, Hospital Clinic of Barcelona, Barcelona, Spain
| | - D. Ramsoekh
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
- Bergman Clinics Maag & Darm Amsterdam, Amsterdam, The Netherlands
- Department of Gastroenterology and Hepatology, Amstelland Hospital, Amstelveen, the Netherlands
| | - R. Schröder
- Department of Gastroenterology and Hepatology, Nij Smellinghe Hospital, Drachten, The Netherlands
| | - E.J van Soest
- Department of Gastroenterology and Hepatology, Spaarne Ziekenhuis, Hoofddorp, the Netherlands
| | - J. Tenthof van Noorden
- Department of Gastroenterology and Hepatology, Sint Antonius Ziekenhuis, Nieuwegein, the Netherlands
| | - K.M.A.J Tytgat
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
- Bergman Clinics Maag & Darm Amsterdam, Amsterdam, The Netherlands
| | - P. van Oosterwijk
- Department of Gastroenterology and Hepatology, Deventer Hospital, Deventer, The Netherlands
| | - P. van Putten
- Department of Gastroenterology and Hepatology, Medical Center Leeuwarden, Leeuwarden, The Netherlands
| | - A. Vehmeijer
- Department of Gastroenterology and Hepatology, Spaarne Ziekenhuis, Hoofddorp, the Netherlands
| | - R. de Vries
- Department of Gastroenterology and Hepatology, Deventer Hospital, Deventer, The Netherlands
| | - M. van der Vlugt
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
- Bergman Clinics Maag & Darm Amsterdam, Amsterdam, The Netherlands
| | - F. Voogd
- Department of Gastroenterology and Hepatology, Medical Center Leeuwarden, Leeuwarden, The Netherlands
| | - E. van der Zanden
- Department of Gastroenterology and Hepatology, Amstelland Hospital, Amstelveen, the Netherlands
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Pericàs J, Romay E, García-País M, Hernández-Meneses M, Ayuso B, Rabuñal R, Moreira L, Moreno A, Corredoira J, Miró J. Relación entre S. gallolyticus sups. gallolyticus, E. faecalis y neoplasias colorrectales en la endocarditis recurrente. Cirugía Cardiovascular 2022. [DOI: 10.1016/j.circv.2022.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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9
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Moreira L, Malloy-Diniz L, Pinheiro G, Costa V. Are there differences in the attention of elite football players concerning playing positions? SCI MED FOOTBALL 2021; 6:494-502. [DOI: 10.1080/24733938.2021.1994151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- L. Moreira
- Sport Psychology Laboratory (LAPES), Sports Department, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
- UFMG Soccer Science Center, Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - L.F. Malloy-Diniz
- Department of Mental Health, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
- Department of Psychology, FUMEC University, Belo Horizonte, Brazil
| | - G.S. Pinheiro
- Chair of Performance Analysis and Sports Informatics, Faculty of Sport and Health Sciences, Technical University Munich (TUM), Munich, Germany
| | - V.T. Costa
- Sport Psychology Laboratory (LAPES), Sports Department, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
- UFMG Soccer Science Center, Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
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Pires J, Moreira L, Teixeira J, Fraga S. In vitro Acute Toxicity of Metal-Based Nanoparticles in Human Trophoblast BeWo b30 Cells. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00505-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bayó C, Castellano G, Ocaña T, Moreira L, Carballal S, Sánchez A, Moreira R, Ortiz O, Castells A, Pellisé M, Juan-Otero M, Benitez-Ribas D, Balaguer F. SO-26 In-silico Lynch syndrome-related neoantigens prediction for a dendritic cell-based cancer prevention vaccine. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Stjepanovic N, Moreira L, Carneiro F, Balaguer F, Cervantes A, Balmaña J, Martinelli E. Hereditary gastrointestinal cancers: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up†. Ann Oncol 2019; 30:1558-1571. [PMID: 31378807 DOI: 10.1093/annonc/mdz233] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- N Stjepanovic
- Medical Oncology Department, University Hospital Vall d'Hebron, Barcelona, Spain
| | - L Moreira
- Gastroenterology Department, Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain
| | - F Carneiro
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto, Portugal; Instituto de Investigação e Inovação em Saúde (i3S), Porto, Portugal; Medical Faculty of the University of Porto, Porto, Portugal; Centro Hospitalar Universitário São João, Porto, Portugal
| | - F Balaguer
- Gastroenterology Department, Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Barcelona, Spain
| | - A Cervantes
- CIBERONC, Department of Medical Oncology, Biomedical Research Institute INCLIVA, University of Valencia, Valencia, Spain
| | - J Balmaña
- Medical Oncology Department, University Hospital Vall d'Hebron, Barcelona, Spain
| | - E Martinelli
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania Luigi Vanvitelli, Napoli, Italy
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Gonzalez LF, Moreira L, Casanova C, Bettoli P. Development and Piloting of a Patient Centered, Risk-Stratified Supportive Care Clinical Pathway for Head & Neck Cancer Patients in a Chilean Cancer Center. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Catarino S, Castro F, Brazão J, Moreira L, Pereira L, Fernandes J, Eiras-Dias J, Graça A, Martins-Lopes P. 87Sr/86Sr isotopic ratios in vineyard soils and varietal wines from Douro Valley. BIO Web Conf 2019. [DOI: 10.1051/bioconf/20191202031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The assessment of wine authenticity is of utmost importance in the current context of a growing market globalization. The strontium isotopic ratio 87Sr/86Sr is a well-established tool for dating and tracing the origin of rocks and minerals with special interest for wine traceability. A study was developed to examine the variation of 87Sr/86Sr in wines from Douro Valley taking into account the effects of vineyard location and grape variety. The 87Sr/86Sr of soils and wines from six vineyards were determined by using an ICP-MS based analytical procedure. A total of twenty-two monovarietal wines, obtained at micro vinification scale, from relevant white and red grapevine varieties for Douro region, were analysed. The range of 87Sr/86Sr values observed in soils and wines was of 0.708–0.725 and 0.711–0.717, respectively. The present study updates the scarce knowledge available on strontium isotopic ratios in soils and wines from Douro Valley, and its results will enlarge global databank on wine composition and support comparison with other world regions.
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Barros A, Santos H, Moreira L, Ribeiro N, Silva L, Santos-Silva F. Correction to: The Cancer, Educate to Prevent Model-the Potential of School Environment for Primary Prevention of Cancer. J Cancer Educ 2018; 33:497. [PMID: 29376205 DOI: 10.1007/s13187-018-1327-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The affiliation address of Dr. Helena Santos should be Faculty of Economics, University of Porto, Portugal and Dr. Luís Moreira's should be Research Unit in Education and Community Intervention - RECI & Health School of Vila Nova de Gaia - Piaget Institute.
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Affiliation(s)
- A Barros
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal
- IPATIMUP - Institute of Pathology and Molecular Immunology of University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal
- Faculty of Sciences of University of Porto - FCUP, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - H Santos
- Faculty of Economics, University of Porto, Porto, Portugal
| | - L Moreira
- Research Unit in Education and Community Intervention - RECI & Health School of Vila Nova de Gaia - Piaget Institute, Alameda Jean Piaget, 4405-678, Vila Nova de Gaia, Portugal
| | - N Ribeiro
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal
- IPATIMUP - Institute of Pathology and Molecular Immunology of University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal
| | - L Silva
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal
- IPATIMUP - Institute of Pathology and Molecular Immunology of University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal
| | - F Santos-Silva
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal.
- IPATIMUP - Institute of Pathology and Molecular Immunology of University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal.
- Faculty of Medicine of the University of Porto - FMUP, Alameda Professor Hernâni Monteiro, 4200-319, Porto, Portugal.
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Moreira L, Villalobos W, Rodríguez-Cerezo E, Rivera C. Infección de la orquídea terrestre Phaius tankervilliae (Orchidaceae) con el potexvirus del mosaico del Cymbidium (CymMV) en Costa Rica. REV BIOL TROP 2017. [DOI: 10.15517/rbt.v47i3.30323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
En 1996, en un pequeño vivero comercial en la zona oeste del Valle Central de Costa Rica se observaron plantas de la orquídea terrestre Phaius tankervilliae que mostraban síntomas foliares de leves a severos de un estriado clorótico sistémico. En algunas flores los sépalos presentaron además manchas cloróticas y anillos blancos. Posteriormente en invernadero se observó que ocurría una senescencia más rápida en flores de plantas sintomáticas que en las flores de plantas sanas de la misma especie. Mediante tinción negativa de muestras purificadas se observaron electrónico de transmisión, partículas virales filamentosas poco flexuosas, con un tamaño aproximado a 500 nm de largo y 17 nm de ancho. Al analizar las partículas virales purificadas en geles desnaturalizantes de proteínas (SDS-PAGE), se determinó la presencia de una sola proteína de cápside cercana a los 28 kDa. En geles nativos de agarosa se determinó que el virus filamentoso observado contiene un ARN con una talla aproximada a los 7kb. Tanto el tamaño de la proteína de cápside como el ARN de este virus purificado concuerdan con los valores informados para el grupo de los potexvirus. Mediante la prueba de ELISA se comprobó que el potexvirus purificado corresponde al virus del mosaico del Cymbidium (CymMV)
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Scheicher M, Moreira L, Faber L. COMPARISON OF STATIC BALANCE BETWEEN INSTITUTIONALIZED AND COMMUNITY-DWELLING OLDER ADULTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - L. Moreira
- Physiotherapy and Occupational Therapy, UNESP
, Marília, São Paulo, Brazil,
| | - L. Faber
- Physiotherapy and Occupational Therapy, UNESP
, Marília, São Paulo, Brazil,
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Scheicher M, Faber L, Moreira L. BALANCE AND MOBILITY PRE-AND POST-TREATMENT WITH VIRTUAL REALITY OF OLDER LIVING AT NURSING HOMES. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M. Scheicher
- Department of Physiotherapy and Occupational Therapy, Marília, São Paulo, Brazil
| | - L. Faber
- Department of Physiotherapy and Occupational Therapy, Marília, São Paulo, Brazil
| | - L. Moreira
- Department of Physiotherapy and Occupational Therapy, Marília, São Paulo, Brazil
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Affiliation(s)
- Luis Moreira
- Departamento
de Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Beatriz M. Illescas
- Departamento
de Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Nazario Martín
- Departamento
de Química Orgánica, Facultad de Química, Universidad Complutense de Madrid, E-28040 Madrid, Spain
- IMDEA-Nanoscience, C/Faraday, 9, Campus de Cantoblanco, E-28049 Madrid, Spain
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20
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Barros A, Santos H, Moreira L, Ribeiro N, Silva L, Santos-Silva F. The Cancer, Educate to Prevent Model-the Potential of School Environment for Primary Prevention of Cancer. J Cancer Educ 2016; 31:646-651. [PMID: 26268942 DOI: 10.1007/s13187-015-0892-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 05/12/2023]
Abstract
Cancer represents one of the main causes of death worldwide; consequently, preventive interventions are of utmost importance in public health education. The leading model of cancer prevention campaigns is based on general and undifferentiated actions mediated by health professionals, focusing on the technical and scientific information but rather ineffective in changing the symbolic, cognitive and practical relationship with the disease. New intervention models are thus required to address cancer literacy, being early interventions targeted to specific groups an elective counterpoint to contribute to positive and durable changes in cancer prevention. Our aim is to evaluate the feasibility and impact of cancer prevention programmes planned as focused interventions in restricted targets and mediated by non-healthcare professionals to increase cancer literacy and promote preventive behaviours. This pilot study evaluates schools' potential as a vehicle for cancer prevention education in a reality shaped by traditional health prevention campaigns. We developed a protocol of systematic surveying in order to review and, in the future, optimize and replicate this ecological model of intervention to other groups and contexts. The implementation of this model has been successful in which concerns to the effectiveness of the training programme for teachers. This led to the development of impactful cancer prevention education projects by trainees targeted to their students, allowing us to argue that it contributes to knowledge and practice in this complex as consensual priority area of intervention.
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Affiliation(s)
- A Barros
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal
- IPATIMUP - Institute of Pathology and Molecular Immunology of University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal
- Faculty of Sciences of University of Porto - FCUP, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - H Santos
- Research Unit in Education and Community Intervention - RECI & Health School of Vila Nova de Gaia - Piaget Institute, Alameda Jean Piaget, 4405-678, Vila Nova de Gaia, Portugal
| | - L Moreira
- Faculty of Economics of the University of Porto - FEP & CIC-Digital, Rua Dr. Roberto Frias, 4200-464, Porto, Portugal
| | - N Ribeiro
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal
- IPATIMUP - Institute of Pathology and Molecular Immunology of University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal
| | - L Silva
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal
- IPATIMUP - Institute of Pathology and Molecular Immunology of University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal
| | - F Santos-Silva
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal.
- IPATIMUP - Institute of Pathology and Molecular Immunology of University of Porto, Rua Júlio Amaral de Carvalho 45, 4200-135, Porto, Portugal.
- Faculty of Medicine of the University of Porto - FMUP, Alameda Professor Hernâni Monteiro, 4200-319, Porto, Portugal.
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Moreira L, Calbo J, Aragó J, Illescas BM, Nierengarten I, Delavaux-Nicot B, Ortí E, Martín N, Nierengarten JF. Conjugated Porphyrin Dimers: Cooperative Effects and Electronic Communication in Supramolecular Ensembles with C 60. J Am Chem Soc 2016; 138:15359-15367. [PMID: 27640915 PMCID: PMC5133674 DOI: 10.1021/jacs.6b07250] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Two new conjugated porphyrin-based
systems (dimers 3 and 4) endowed with suitable
crown ethers have been
synthesized as receptors for a fullerene-ammonium salt derivative
(1). Association constants in solution have been determined
by UV–vis titration experiments in CH2Cl2 at room temperature. The designed hosts are able to associate up
to two fullerene-based guest molecules and present association constants
as high as ∼5 × 108 M–1.
Calculation of the allosteric cooperative factor α for supramolecular
complexes [3·12] and [4·12] showed a negative cooperative effect in both cases. The interactions
accounting for the formation of the associates are based, first, on
the complementary ammonium-crown ether interaction and, second, on
the π–π interactions between the porphyrin rings
and the C60 moieties. Theoretical calculations have evidenced
a significant decrease of the electron density in the porphyrin dimers 3 and 4 upon complexation of the first C60 molecule, in good agreement with the negative cooperativity
found in these systems. This negative effect is partially compensated
by the stabilizing C60–C60 interactions
that take place in the more stable syn-disposition
of [4·12].
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Affiliation(s)
- Luis Moreira
- Laboratorie de Chimie des Matériaux Moléculaires, Université de Strasbourg et CNRS (UMR 7509), ECPM , 67087 Strasbourg, Cedex 2, France.,Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid , 28040 Madrid, Spain
| | - Joaquín Calbo
- Instituto de Ciencia Molecular, Universidad de Valencia , 46890 Paterna, Spain
| | - Juan Aragó
- Instituto de Ciencia Molecular, Universidad de Valencia , 46890 Paterna, Spain
| | - Beatriz M Illescas
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid , 28040 Madrid, Spain
| | - Iwona Nierengarten
- Laboratorie de Chimie des Matériaux Moléculaires, Université de Strasbourg et CNRS (UMR 7509), ECPM , 67087 Strasbourg, Cedex 2, France
| | - Béatrice Delavaux-Nicot
- Laboratoire de Chimie de Coordination du CNRS (UPR 8241), Université de Toulouse (UPS, INPT) , 31077 Toulouse, Cedex 4, France
| | - Enrique Ortí
- Instituto de Ciencia Molecular, Universidad de Valencia , 46890 Paterna, Spain
| | - Nazario Martín
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid , 28040 Madrid, Spain.,Imdea-Nanoscience , Campus Cantoblanco, 28049 Madrid, Spain
| | - Jean-François Nierengarten
- Laboratorie de Chimie des Matériaux Moléculaires, Université de Strasbourg et CNRS (UMR 7509), ECPM , 67087 Strasbourg, Cedex 2, France
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Gastauer M, Almado R, Miazaki A, Diniz É, Moreira L, Meira-Neto J. Species composition, community and population dynamics of two gallery forests from the Brazilian Cerrado domain. Biodivers Data J 2016:e8503. [PMID: 27660529 PMCID: PMC5018118 DOI: 10.3897/bdj.4.e8503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 07/15/2016] [Indexed: 11/26/2022] Open
Abstract
Background To understand the impacts of global changes on future community compositions, knowledge of community dynamics is of crucial importance. To improve our knowledge of community composition, biomass stock and maintenance of gallery forests in the Brazilian Cerrado, we provide two datasets from the 0.5 ha Corrego Fazendinha Gallery Forest Dynamics Plot and the Corrego Fundo Gallery Forest Dynamics Plot situated in the Bom Despacho region, Minas Gerais, Southeastern Brazil. New information We report diameter at breast height, basal area and height measurements of 3417 trees and treelets identified during three censuses in both areas.
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Gonçalves HMR, Moreira L, Pereira L, Jorge P, Gouveia C, Martins-Lopes P, Fernandes JRA. Biosensor for label-free DNA quantification based on functionalized LPGs. Biosens Bioelectron 2015; 84:30-6. [PMID: 26456729 DOI: 10.1016/j.bios.2015.10.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 09/30/2015] [Accepted: 10/01/2015] [Indexed: 10/23/2022]
Abstract
A label-free fiber optic biosensor based on a long period grating (LPG) and a basic optical interrogation scheme using off the shelf components is used for the detection of in-situ DNA hybridization. A new methodology is proposed for the determination of the spectral position of the LPG mode resonance. The experimental limit of detection obtained for the DNA was 62±2nM and the limit of quantification was 209±7nM. The sample specificity was experimentally demonstrated using DNA targets with different base mismatches relatively to the probe and was found that the system has a single base mismatch selectivity.
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Affiliation(s)
- Helena M R Gonçalves
- University of Trás-os-Montes and Alto Douro, P.O. Box 1013, 5000-911 Vila Real, Portugal
| | - Luis Moreira
- University of Trás-os-Montes and Alto Douro, P.O. Box 1013, 5000-911 Vila Real, Portugal
| | - Leonor Pereira
- University of Trás-os-Montes and Alto Douro, P.O. Box 1013, 5000-911 Vila Real, Portugal; University of Lisboa, Faculty of Sciences, BioISI- Biosystems & Integrative Sciences Institute, Campo Grande, Lisboa, Portugal
| | - Pedro Jorge
- INESC TEC, Rua do Campo Alegre n. 687, 4169-007 Porto, Portugal
| | - Carlos Gouveia
- INESC TEC, Rua do Campo Alegre n. 687, 4169-007 Porto, Portugal
| | - Paula Martins-Lopes
- University of Trás-os-Montes and Alto Douro, P.O. Box 1013, 5000-911 Vila Real, Portugal; University of Lisboa, Faculty of Sciences, BioISI- Biosystems & Integrative Sciences Institute, Campo Grande, Lisboa, Portugal
| | - José R A Fernandes
- University of Trás-os-Montes and Alto Douro, P.O. Box 1013, 5000-911 Vila Real, Portugal; INESC TEC, Rua do Campo Alegre n. 687, 4169-007 Porto, Portugal.
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Sousa CM, Moreira L, Coimbra D, Machado J, Greten HJ. Immediate effects of Tuina techniques on working-related musculoskeletal disorder of professional orchestra musicians. J Integr Med 2015; 13:257-61. [PMID: 26165370 DOI: 10.1016/s2095-4964(15)60181-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND Musicians are a prone group to suffer from working-related musculoskeletal disorder (WRMD). Conventional solutions to control musculoskeletal pain include pharmacological treatment and rehabilitation programs but their efficiency is sometimes disappointing. OBJECTIVE The aim of this research is to study the immediate effects of Tuina techniques on WRMD of professional orchestra musicians from the north of Portugal. DESIGN, SETTING, PARTICIPANTS AND INTERVENTIONS We performed a prospective, controlled, single-blinded, randomized study. Professional orchestra musicians with a diagnosis of WRMD were randomly distributed into the experimental group (n=39) and the control group (n=30). During an individual interview, Chinese diagnosis took place and treatment points were chosen. Real acupoints were treated by Tuina techniques into the experimental group and non-specific skin points were treated into the control group. Pain was measured by verbal numerical scale before and immediately after intervention. RESULTS After one treatment session, pain was reduced in 91.8% of the cases for the experimental group and 7.9% for the control group. CONCLUSION Although results showed that Tuina techniques are effectively reducing WRMD in professional orchestra musicians of the north of Portugal, further investigations with stronger measurements, double-blinding designs and bigger simple sizes are needed.
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Affiliation(s)
- Cláudia Maria Sousa
- University of Porto, Institute of Biomedical Sciences Abel Salazar, 4099-030 Porto, Portugal
| | - Luis Moreira
- Jean Piaget Health Superior School, 4405-708 Gaia, Portugal
- Research in Education and Community Intervention - RECI, 3515-776 Viseu, Portugal
| | - Daniela Coimbra
- Porto Polytechnic Institute, Superior School of Music and PerformingArts, i2ads, 4000-035 Porto, Portugal
| | - Jorge Machado
- University of Porto, Institute of Biomedical Sciences Abel Salazar, 4099-030 Porto, Portugal
| | - Henry J Greten
- University of Porto, Institute of Biomedical Sciences Abel Salazar, 4099-030 Porto, Portugal
- German Society of Traditional Chinese Medicine, 69126 Heidelberg, Germany
- Heidelberg School of Chinese Medicine, 69126 Heidelberg, Germany
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Fernandes JR, Pereira L, Jorge P, Moreira L, Gonçalves H, Coelho L, Alexandre D, Eiras-Dias J, Brazão J, Clímaco P, Baleiras-Couto M, Catarino S, Graça A, Martins-Lopes P. Wine fingerprinting using a bio-geochemical approach. BIO Web of Conferences 2015. [DOI: 10.1051/bioconf/20150502021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Moreira L, Calbo J, Krick Calderon RM, Santos J, Illescas BM, Aragó J, Nierengarten JF, Guldi DM, Ortí E, Martín N. Unveiling the nature of supramolecular crown ether-C 60 interactions. Chem Sci 2015; 6:4426-4432. [PMID: 29142697 PMCID: PMC5665100 DOI: 10.1039/c5sc00850f] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 05/14/2015] [Indexed: 11/21/2022] Open
Abstract
A series of exTTF-(crown ether)2 receptors, designed to host C60, has been prepared. The size of the crown ether and the nature of the heteroatoms have been systematically changed to fine tune the association constants. Electrochemical measurements and transient absorption spectroscopy assisted in corroborating charge transfer in the ground state and in the excited state, leading to the formation of radical ion pairs featuring lifetimes in the range from 12 to 21 ps. To rationalize the nature of the exTTF-(crown ether)2·C60 stabilizing interactions, theoretical calculations have been carried out, suggesting a synergetic interplay of donor-acceptor, π-π, n-π and CH···π interactions, which is the basis for the affinity of our novel receptors towards C60.
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Affiliation(s)
- Luis Moreira
- Departamento de Química Orgánica , Facultad de Química , Universidad Complutense de Madrid , 28040 Madrid , Spain .
| | - Joaquín Calbo
- Instituto de Ciencia Molecular , Universidad de Valencia , 46980 Paterna , Spain .
| | - Rafael M Krick Calderon
- Department Chemie und Pharmazie , Friedrich-Alexander-Universität , 91058 Erlangen , Germany .
| | - José Santos
- Departamento de Química Orgánica , Facultad de Química , Universidad Complutense de Madrid , 28040 Madrid , Spain .
| | - Beatriz M Illescas
- Departamento de Química Orgánica , Facultad de Química , Universidad Complutense de Madrid , 28040 Madrid , Spain .
| | - Juan Aragó
- Instituto de Ciencia Molecular , Universidad de Valencia , 46980 Paterna , Spain .
| | - Jean-François Nierengarten
- Laboratoire de Chimie des Matériaux Moléculaires , Université de Strasbourg et CNRS (UMR 7509) , 67087 Strasbourg , France .
| | - Dirk M Guldi
- Department Chemie und Pharmazie , Friedrich-Alexander-Universität , 91058 Erlangen , Germany .
| | - Enrique Ortí
- Instituto de Ciencia Molecular , Universidad de Valencia , 46980 Paterna , Spain .
| | - Nazario Martín
- Departamento de Química Orgánica , Facultad de Química , Universidad Complutense de Madrid , 28040 Madrid , Spain .
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Duarte G, Oliveira A, Thomazin M, Tocchet F, Moreira L, Worchech A, Torresan R. P318 Accuracy of frozen section or cytology of sub-nipple tissue to predict nipple involvement for cancer. Breast 2015. [DOI: 10.1016/s0960-9776(15)70348-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Rodríguez de Miguel C, Serradesanferm A, López-Cerón M, Carballal S, Pozo A, Balaguer F, Cárdenas A, Fernández-Esparrach G, Ginés A, González-Suárez B, Moreira L, Ordás I, Ricart E, Sendino O, Vaquero E, Ubré M, del Manzano S, Grau J, Llach J, Castells A, Pellisé M. Ascorbic acid PEG-2L is superior for early morning colonoscopies in colorectal cancer screening programs: A prospective non-randomized controlled trial. Gastroenterología y Hepatología 2015; 38:62-70. [DOI: 10.1016/j.gastrohep.2014.09.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 09/14/2014] [Accepted: 09/16/2014] [Indexed: 01/10/2023]
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Moreira L, Calbo J, Illescas BM, Aragó J, Nierengarten I, Delavaux-Nicot B, Ortí E, Martín N, Nierengarten JF. Metal-Atom Impact on the Self-Assembly of Cup-and-Ball Metalloporphyrin-Fullerene Conjugates. Angew Chem Int Ed Engl 2014; 54:1255-60. [DOI: 10.1002/anie.201409487] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Indexed: 11/08/2022]
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Moreira L, Calbo J, Illescas BM, Aragó J, Nierengarten I, Delavaux-Nicot B, Ortí E, Martín N, Nierengarten JF. Metal-Atom Impact on the Self-Assembly of Cup-and-Ball Metalloporphyrin-Fullerene Conjugates. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409487] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Caporrino FA, Moreira L, Moraes VY, Belloti JC, Gomes dos Santos JB, Faloppa F. Brachial plexus injuries: diagnosis performance and reliability of everyday tools. ACTA ACUST UNITED AC 2014; 19:7-11. [PMID: 24641734 DOI: 10.1142/s0218810414500026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
PURPOSE Determining the patterns of brachial plexus injuries is challenging. Diagnostic methods have been used to facilitate diagnosis, but there is no consensus regarding which tool best complements physical examination (PE). Magnetic resonance imaging (MRI) and nerve conduction studies (NCSs) are instruments with widespread use and feasibility for everyday assessment. In this study, we evaluated the diagnostic performance of these diagnostic instruments and PE. We also assessed the agreement in the PE and diagnostic instrument findings of two experienced and certified hand surgeons. METHODS We reviewed data gathered from medical records and compared these data with the results of operative findings. We divided data according to the site of injury and the root injury patterns for all three diagnostic instruments (PE, MRI, and NCSs). RESULTS We considered 102 assessments. We found poor inter-observer agreement for the PE assessments and poor agreement among the PE, NCS, and MRI assessments. Diagnostic performance was higher for PE: sensitivity = 97.8 [95% confidence interval (C.I.) = 92.1-99.7]; specificity = 30.8 [95% C.I. = 9.1-61.4], and NCSs (sensitivity = 98.9 [95% C.I. = 93.9-100]; specificity = 23.1 [95% C.I. = 5-53.8]. MRI had inferior performance for all measurements. Separate analysis using pre- and post-ganglionic injuries revealed that PE had the lowest sensitivity, 46.7 (95% C.I. = 21.3-73.4) despite having the highest specificity, 81.6 (95% C.I. = 71.9-89.1). DISCUSSION Low agreement among the findings using different diagnostic instruments demonstrated that PE is the most specific tool, despite its low sensitivity. Detailed PE is cornerstone for evaluating brachial plexus injuries and NCSs are better than MRI for scrutinizing injuries not found in PE. CLINICAL RELEVANCE In our study, NCSs exhibited superior performance to MRI, and should be considered a more reliable supporting tool after detailed PE.
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Affiliation(s)
- F A Caporrino
- Department of Orthopedics and Traumatology, Hand Surgery Division, Federal University of São Paulo - UNIFESP-EPM, São Paulo - SP, 04021-001, Brazil
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Lisboa L, Mejia O, Moreira L, Dallan L, Pomerantzeff PMA, Dallan L, Massoti M, Vianna D, Jatene F. EuroSCORE II and the importance of a local model, InsCor. J Cardiothorac Surg 2013. [PMCID: PMC3844633 DOI: 10.1186/1749-8090-8-s1-o115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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Lee IM, Bottner-Parker KD, Zhao Y, Villalobos W, Moreira L. 'Candidatus Phytoplasma costaricanum' a novel phytoplasma associated with an emerging disease in soybean (Glycine max). Int J Syst Evol Microbiol 2011; 61:2822-2826. [PMID: 21216914 DOI: 10.1099/ijs.0.029041-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel phytoplasma, designated strain SoyST1c1, associated with a newly emerging disease in soybean (Glycine max), known as soybean stunt (SoyST), was found in 2002 in a soybean plantation in Alajuela Province, Costa Rica. The same phytoplasma, or a very closely related strain, also infected sweet pepper (Capsicum annuum) with purple vein syndrome (SwPPV) and passion fruit vine (Passiflora edulis) with bud proliferation disease (PasFBP) in the same region. Sequence analysis of cloned 16S rRNA gene sequences (GenBank accession nos FJ226068-FJ226073 and HQ225624-HQ225635) indicated that all three affected plants were infected by phytoplasmas that shared <97.5% sequence similarity with previously described phytoplasmas. The SoyST-causing phytoplasma represents a new taxon, most closely related to phytoplasma group 16SrI and 16SrXII strains. Virtual RFLP analysis indicated that the SoyST-causing phytoplasma and its closely related strains represent a novel 16Sr group, designated 16SrXXXI. Phylogenetic analysis of 16S rRNA gene sequences from the new phytoplasma strains, those previously described as 'Candidatus Phytoplasma spp.' and other distinct, as yet unnamed, phytoplasmas indicated that the SoyST-causing phytoplasma represents a distinct lineage within the aster yellows/stolbur branch on the phylogenetic tree. On the basis of its unique 16S rRNA gene sequence and biological properties, strain SoyST1c1 represents a novel taxon, for which the name 'Candidatus Phytoplasma costaricanum' is proposed with SoyST1c1 as the reference strain.
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Affiliation(s)
- I-M Lee
- Molecular Plant Pathology Laboratory, USDA-ARS, Beltsville, MD 20705, USA
| | - K D Bottner-Parker
- Molecular Plant Pathology Laboratory, USDA-ARS, Beltsville, MD 20705, USA
| | - Y Zhao
- Molecular Plant Pathology Laboratory, USDA-ARS, Beltsville, MD 20705, USA
| | - W Villalobos
- Centro de Investigación en Biologia Celular y Molecular, Universidad de Costa Rica (UCR), CP 11501-2060, San José, Costa Rica
| | - L Moreira
- Escuela de Agronomía, UCR, San José, Costa Rica
- Centro de Investigación en Biologia Celular y Molecular, Universidad de Costa Rica (UCR), CP 11501-2060, San José, Costa Rica
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Rodrigues F, Castro M, Fuchs S, Fuchs F, Moreira L. P2-258 Evaluation of the effectiveness of the pharmacotherapy follow-up on the treatment of hypertensive patients: a cohort study. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976j.91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Lima R, Moreira L, Rossato S, Silva R, Fuchs S. P2-155 Consumption of ultra-processed food is associated with blood pressure in hypertensive individuals. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976i.90] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Tavares I, Lobato L, Moreira L, Santos J, Lacerda P, Pinheiro J, Costa P. Long-term follow-up of patients with hereditary fibrinogen A alpha-chain amyloidosis. Amyloid 2011; 18 Suppl 1:221-2. [PMID: 21838495 DOI: 10.3109/13506129.2011.574354083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- I Tavares
- Unidade de I & D de Nefrologia (FCT – 725), Faculdade de Medicina do Porto, University of Porto, Porto, Portugal.
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Abstract
This study aims to compare the frequency of Staphylococcus aureus nasal carriage among students from a Portuguese higher health school. Antimicrobial susceptibility testing was also assayed in order to detect methicillin-resistant S. aureus (MRSA) strains among the isolates. Nasal swabs and fingerprints from 60 healthy nursing and pharmacy students were collected, followed by inoculation and incubation at 37 degrees C for 24 h. All suspected S. aureus isolates were identified by routine laboratory procedures. The susceptibility to antimicrobial agents (tetracycline, gentamicin, chloramphenicol, amoxicillin/clavulanic acid, trimethoprim/sulphamethoxazole, oxacillin and vancomycin) of confirmed isolates was determined by a disc-diffusion method. Results showed 41.7% S. aureus colonisation among participants, and that the difference between nursing and pharmacy students was statistically significant. Antibiotic susceptibility testing demonstrated that S. aureus isolates showed variable sensitivity to antibiotics but, most importantly, were resistant to oxacillin and vancomycin. Although the frequency and prevalence of colonisation found is within the range previously described in healthy populations, increased resistance to antimicrobials and higher prevalence of MRSA among the student community was found.
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Affiliation(s)
- J Marques
- Escola Superior de Saúde Jean Piaget, Vila Nova Gaia, Portugal
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Ribeiro C, Moreira L, Silveira A, Silva I, Gestal J, Vasconcelos C. Development and use of touch - screen computer-assisted self interviewing in Portuguese patients with chronic immune diseases: evaluation of an electronic version of sf-36v2 . Acta Reumatol Port 2010; 35:208-214. [PMID: 20734544] [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] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
AIM The major purpose of this study was to evaluate alternative automated methods of collecting data on health related quality of life (HR-QoL). In order to achieve this, we developed a study with the following objectives: (1) to evaluated the feasibility of electronic version in patients with different chronic pathologies of the immune system using Short Form 36version2 (SF-36v2), (2) to evaluate the construct validity of SF-36v2 using the electronic data capture, and (3) to compare electronic version questionnaires with paper questionnaires in terms of patients' acceptance, data quality, and reliability. METHODS Out-patients with chronic immune diseases (HIV infection, lupus, scleroderma, rheumatoid arthritis, Behçet and Sjögren), were randomly selected to completed electronic and paper SF-36v2 (n=50) before consultation in Clinical Immunology Unit, in Hospital Santo António-Centro Hospitalar do Porto (CI-HGSA). RESULTS There were very high correlations in SF-36v2 responses (p< .001) between the paper and electronic forms. Internal reliability coefficients (Cronbach's alpha) showed good internal consistency for all reported responses in either, computer and paper. There were no missing data in electronic version or paper. About 84% of the patients prefer to use the computer version in future. CONCLUSION The electronic HR-QoL assessment is technically possible and it can provide reliable and valid clinically significant information which can either be used in routine care appointments.
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Affiliation(s)
- Claudia Ribeiro
- Hospital de Santo António - Centro Hospitalar do Porto, Faculdade de Medicina Santiago de Compostela, Universidade Católica Portuguesa, Campus Viseu, Viseu, Portugal.
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Villalobos W, Moreira L, Rivera C, Lee IM. First Report of New Phytoplasma Diseases Associated with Soybean, Sweet Pepper, and Passion Fruit in Costa Rica. Plant Dis 2009; 93:201. [PMID: 30764130 DOI: 10.1094/pdis-93-2-0201c] [Citation(s) in RCA: 2] [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: 06/09/2023]
Abstract
A new soybean disease outbreak occurred in 2002 in a soybean (Glycine max) plantation in Alajuela Province, Costa Rica. Symptoms on the affected plants included general stunting, small leaves, formation of excessive buds, and aborted seed pods. In the same region, two other diseases, one in sweet pepper (Capsicum annuum) fields and another affecting passion fruit (Passiflora edulis) vines, were also found. Symptoms on sweet pepper plants included unusually dark green leaves, some of which exhibited a rugose symptom with a zigzag pattern to the midvein, and purple vein discoloration. Passion fruit vines exhibited bud proliferation. Collectively, symptoms resembled those commonly attributed to phytoplasmal infections. Total nucleic acid was extracted from veinal tissues of leaves or buds (soybean). A nested PCR assay using primer pair P1/P7 followed by R16F2n/R16R2 (1) was employed for the detection of putative phytoplasmas that might be associated within symptomatic plants. All seven symptomatic plants (three soybean, three sweet pepper, and one passion fruit) tested, but not healthy controls, yielded positive results. Restriction fragment length polymorphism (RFLP) analysis of nested PCR products using restriction enzymes AluI, BfaI, HhaI, MseI, and RsaI indicated that the three diseases were associated with a very similar or identical phytoplasma. RFLP patterns and sequence analysis of cloned 16S rDNAs (GenBank Accession Nos. FJ226068-FJ226073) revealed that the phytoplasma shared less than 97.5% sequence homology with all previously classified phytoplasmas, and, as such, represents a new taxon most closely related to 16SrXII group (1) strains. To our knowledge, this is the first report of a new phytoplasma associated with diseases of soybean, sweet pepper, and passion fruit in Costa Rica. Reference: (1) I.-M. Lee et al. Int. J. Syst. Bacteriol. 48:1153, 1998.
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Affiliation(s)
- W Villalobos
- Centro de Investigación en Biologia Celular y Molecular, Universidad de Costa Rica, San José, Costa Rica
| | - L Moreira
- Centro de Investigación en Biologia Celular y Molecular, Universidad de Costa Rica, San José, Costa Rica
| | - C Rivera
- Centro de Investigación en Biologia Celular y Molecular, Universidad de Costa Rica, San José, Costa Rica
| | - I-M Lee
- Molecular Plant Pathology Laboratory, USDA-ARS, Beltsville, MD 20705
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Montero-Astúa M, Saborío-R G, Chacón-Díaz C, Villalobos W, Rodríguez CM, Moreira L, Rivera C. First Report of Xylella fastidiosa in Nerium oleander in Costa Rica. Plant Dis 2008; 92:1249. [PMID: 30769461 DOI: 10.1094/pdis-92-8-1249a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Oleander (Nerium oleander L.) shrubs presenting mottling, leaf tip and margin scorch, short internodes, defoliation, and branch dieback were observed at different localities in the Central Valley in Costa Rica. Severity of the symptoms ranged widely, and most plants showed both diseased and healthy branches. In severe cases, entire sections of the plant were defoliated. Symptoms resembled those described for oleander leaf scorch (OLS) caused by the bacterium Xylella fastidiosa in the United States (3). This bacterium has been reported in coffee and citrus plants in Costa Rica. Sixty plants from five different places were sampled and tested using ELISA (Agdia Inc., Elkhart, IN) against X. fastidiosa. Thirty-five plants showed absorbance mean value of duplicate wells greater than the mean of control wells plus three times the standard deviation, and therefore were considered positive. Thirty-three of the sixty samples were processed for an immunofluorescence assay modified from Carbajal et al. (1) with antibody to X. fastidiosa (Agdia Inc.). Thirteen samples showed fluorescent rod-shaped bacilli with morphology similar to those observed from a pure culture of X. fastidiosa obtained from coffee. Ten of these thirteen samples were positive by ELISA. DNA extracts (2) from three of the oleander plants with high ELISA absorbance values were tested by nested PCR with primer pair 272-1/272-2 followed by the pair 272-1 int/272-2 int (4). Two of the samples were positive for the bacterium and one of the PCR products was cloned and sequenced in both directions (GenBank Accession No. EU009615). The negative (PCR mix) and positive (pure culture of X. fastidiosa isolated from grapevine) controls for nested-PCR were indeed negative and positive, respectively. The BLAST program was used to compare the sequence to the nucleotide collection (nr/nt) and Microbe Assembled Genomes databases in GenBank. All matches corresponded to X. fastidiosa sequences. The sequence showed 97% similarity with strains Found-4 (coffee strain from Brazil) and Found-5 (citrus strain from Brazil) and 96% similarity with strain Ann-1 from oleander in California. On the basis of serological, microscopic, and molecular detection of X. fastidiosa from oleander exhibiting symptoms of OLS similar to those reported in the literature, this pathogen likely is causing the symptoms we observed in Costa Rica. References: (1) D. Carbajal et al. Curr. Microbiol. 49:372, 2004. (2) M. J. Green et al. Plant Dis. 83:482, 1999. (3) Q. Huang et al. Plant Dis. 88:1049, 2004. (4) M. R. Pooler and J. S. Hartung. Curr. Microbiol. 31:377, 1995.
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Affiliation(s)
- M Montero-Astúa
- Centro de Investigación en Biología Celular y Molecular (CIBCM), Universidad de Costa Rica (UCR), CP 11501-2060, San José, Costa Rica
| | - G Saborío-R
- Centro de Investigación en Biología Celular y Molecular (CIBCM), Universidad de Costa Rica (UCR), CP 11501-2060, San José, Costa Rica
| | - C Chacón-Díaz
- CIBCM-UCR and Facultad de Microbiología, UCR, San José, Costa Rica
| | | | - C M Rodríguez
- Instituto del Café de Costa Rica (ICAFE), Heredia, Costa Rica
| | - L Moreira
- CIBCM-UCR and Escuela de Agronomía, UCR, San José, Costa Rica
| | - C Rivera
- CIBCM-UCR and Facultad de Microbiología, UCR, San José, Costa Rica
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Montero-Astúa M, Saborío-R G, Chacón-Díaz C, Garita L, Villalobos W, Moreira L, Hartung JS, Rivera C. First Report of Xylella fastidiosa in Avocado in Costa Rica. Plant Dis 2008; 92:175. [PMID: 30786370 DOI: 10.1094/pdis-92-1-0175c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Since the late 1990s, chlorotic mottling, marginal scorch, deformation of leaves, defoliation, shortening of internodes, and branch dieback have been observed in avocado trees (Persea americana Mill.) in Costa Rica. The symptoms are not uniformly distributed in the tree, so some branches are symptomatic while others are not. These symptoms are similar to several leaf scorch diseases caused by the bacterium Xylella fastidiosa Wells (2,4). This bacterium has been detected in coffee and citrus plants in Costa Rica. Of 227 avocado trees tested by double-antibody sandwich (DAS)-ELISA with X. fastidiosa specific antiserum (Agdia Inc., Elkhart, IN) from 2000-2004, 188 were positive. Results of ELISA tests of individual trees varied with the season and branches tested. Fifteen greenhouse-grown, ELISA-negative avocado seedlings were grafted with budwood from an ELISA-positive tree. Eight of these developed scorch symptoms and one also showed chlorotic mottling and deformation, showing that the disease is graft transmitted. All of these features are characteristic of diseases caused by X. fastidiosa (2,4). Transmission electron microscopy of leaf petioles from three field trees positive by ELISA, revealed rod-shaped bacilli approximately 1.6 to 2.0 μm long and 0.3 μm in diameter with a rippled cell wall inside xylem vessels and embedded in a matrix; morphology and measurements that are consistent with those reported for X. fastidiosa (2). DNA extraction and PCR attempts have been limited by mucilaginous sap from avocado. Positive PCR results (approximately 472-bp band) were obtained from two of the grafted seedlings and seven field trees from two distinct geographical locations (Alajuela and San José provinces) with DNA extractions from the plant sap using DNeasy Plant Mini Kit (Qiagen GmbH, Hilden, Germany) following a modified protocol (1) and nested PCR (3). Four of the PCR products, including one from the grafted seedlings, were cloned and sequenced in duplicate. GenBank sequences EU021997 to EU022000 present 99 to 100% sequence identity to a Pierce's disease strain from California (Temecula1) and 94 to 95% to a citrus variegated chlorosis strain from Brazil (Found-5). Several attempts have been made to isolate the bacterium in 'periwinkle wilt' and buffered cysteine-yeast extract media with negative results, probably because of the rapid production of mucilaginous sap when the avocado tissues were sampled. To our knowledge, this is the first report of X. fastidiosa in avocado trees. References: (1) M. J. Green et al. Plant Dis. 83:482, 1999. (2) S. S. Hearon et al. Can. J. Bot. 58:1986, 1980. (3) M. R. Pooler and J. S. Hartung. Curr. Microbiol. 31:377, 1995. (4) A. H. Purcell et al. Phytopathology 89:53, 1999.
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Affiliation(s)
- M Montero-Astúa
- Centro de Investigación en Biología Celular y Molecular (CIBCM), Universidad de Costa Rica (UCR), San José, Costa Rica
| | - G Saborío-R
- Centro de Investigación en Biología Celular y Molecular (CIBCM), Universidad de Costa Rica (UCR), San José, Costa Rica
| | - C Chacón-Díaz
- CIBCM, UCR and Facultad de Microbiología, UCR, San José, Costa Rica
| | - L Garita
- CIBCM, UCR, San José, Costa Rica
| | | | - L Moreira
- CIBCM, UCR and Escuela de Agronomía, UCR, San José, Costa Rica
| | - J S Hartung
- USDA-ARS Molecular Plant Pathology Laboratory, 10300 Baltimore Ave., Beltsville, MD 20705
| | - C Rivera
- CIBCM, UCR and Facultad de Microbiología, UCR, San José, Costa Rica
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Abstract
Relacionaram-se as características da adenomiose com as fases do ciclo estral em 61 peças de úteros de bovinos colhidas em matadouros. A adenomiose foi classificada em superficial e profunda. A fase do ciclo estral foi estimada pela morfologia, pela coloração e pela vascularização do corpo lúteo e presença ou não de folículos ovarianos maiores que 8mm. Os animais que estavam em anestro (n=11) apresentaram a menor ocorrência de adenomiose (8,2%), e os que estavam na fase lútea média (n=21), a maior (31,0%). Nas fases lútea inicial (n=13) e folicular (n=16) as ocorrências foram semelhantes, 18,0 e 22,9%, respectivamente. A maior porcentagem de adenomiose profunda ocorreu nas fases lútea inicial e média, 45,0 e 47,4%, respectivamente, e durante o anestro e a fase folicular foram de 20,0 e 14,3%, respectivamente. Os resultados sugerem que a fase do ciclo estral influencia na ocorrência de adenomiose e no grau de infiltração miometrial das glândulas endometriais.
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Liang Y, Koslowski HR, Thomas PR, Nardon E, Alper B, Andrew P, Andrew Y, Arnoux G, Baranov Y, Bécoulet M, Beurskens M, Biewer T, Bigi M, Crombe K, De La Luna E, de Vries P, Fundamenski W, Gerasimov S, Giroud C, Gryaznevich MP, Hawkes N, Hotchin S, Howell D, Jachmich S, Kiptily V, Moreira L, Parail V, Pinches SD, Rachlew E, Zimmermann O. Active control of type-I edge-localized modes with n=1 perturbation fields in the JET tokamak. Phys Rev Lett 2007; 98:265004. [PMID: 17678097 DOI: 10.1103/physrevlett.98.265004] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2007] [Indexed: 05/16/2023]
Abstract
Type-I edge-localized modes (ELMs) have been mitigated at the JET tokamak using a static external n=1 perturbation field generated by four error field correction coils located far from the plasma. During the application of the n=1 field the ELM frequency increased by a factor of 4 and the amplitude of the D(alpha) signal decreased. The energy loss per ELM normalized to the total stored energy, DeltaW/W, dropped to values below 2%. Transport analyses shows no or only a moderate (up to 20%) degradation of energy confinement time during the ELM mitigation phase.
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Affiliation(s)
- Y Liang
- Forschungszentrum Jülich GmbH, Association EURATOM-FZ Jülich, Institut für Plasmaphysik, Trilateral Euregio Cluster, D-52425 Jülich, Germany.
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Moreira L, Leitäo RE, Martins F. Solvent and temperature effects on ion association and mobility of 2,6-lutidinium chloride in non-aqueous solvents. Mol Phys 2007. [DOI: 10.1080/00268970600665104] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- L. Moreira
- a Department of Chemistry and Biochemistry—FCUL , CQB , Campo Grande, 1749-016 Lisboa, Portugal
| | - R. E. Leitäo
- b Department of Chemical Engineering—ISEL , CQB , R. Conselheiro Emídio Navarro, 1950-062, Lisboa, Portugal
| | - F. Martins
- a Department of Chemistry and Biochemistry—FCUL , CQB , Campo Grande, 1749-016 Lisboa, Portugal
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Abraham EG, Donnelly-Doman M, Fujioka H, Ghosh A, Moreira L, Jacobs-Lorena M. Driving midgut-specific expression and secretion of a foreign protein in transgenic mosquitoes with AgAper1 regulatory elements. Insect Mol Biol 2005; 14:271-9. [PMID: 15926896 DOI: 10.1111/j.1365-2583.2004.00557.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The Anopheles gambiae adult peritrophic matrix protein 1 (AgAper1) regulatory elements were used to drive the expression of phospholipase A2 (PLA2), a protein known to disrupt malaria parasite development in mosquitoes. These AgAper1 regulatory elements were sufficient to promote the accumulation of PLA2 in midgut epithelial cells before a blood meal and its release into the lumen upon blood ingestion. Plasmodium berghei oocyst formation was reduced by approximately 80% (74-91% range) in transgenic mosquitoes. Blood-seeking behaviour and survival of AgAper1-PLA2 transgenic mosquitoes were comparable to sibling wild-type mosquitoes, while fertility was substantially lower. Ultrastructural studies suggest that decreased fitness is a consequence of internal damage to midgut epithelial cells.
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Affiliation(s)
- E G Abraham
- Department of Molecular Microbiology and Immunology, John Hopkins Bloomberg School of Public Health, Malaria Research Institute, Baltimore, MD 21205, USA
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Aguilar E, Villalobos W, Moreira L, Rodríguez CM, Kitajima EW, Rivera C. First Report of Xylella fastidiosa Infecting Citrus in Costa Rica. Plant Dis 2005; 89:687. [PMID: 30795413 DOI: 10.1094/pd-89-0687b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Citrus variegated chlorosis (CVC) is an important disease mainly of sweet orange (Citrus sinensis (L.) Osbeck) cultivars. It was first described in Brazil in the state of Sā Paulo in 1987 (4). The disease has spread to all Brazilian states that grow citrus and is affecting more than one-third of the orange trees grown in Brazil. CVC is caused by Xylella fastidiousa, a xylem-limited, gram-negative bacterium. During the last 4 years, symptoms including leaf interveinal chlorosis, stunting, canopy dieback, and hard and undersized fruits, similar to those caused by CVC (3), appeared in sweet orange trees used as shade plants for coffee plantations and as fence posts in Costa Rica. Necrotic lesions on the abaxial side of the leaves as reported in Brazil were rarely observed. Leaf petiole samples from 25 symptomatic sweet orange trees reacted positively with a X fastidiosa-specific antiserum (AGDIA Inc., Elkart, IN) in a double-sandwich antibody enzyme-linked immunosorbent assay (DAS-ELISA). A fastidious, gram-negative bacterium identified as X. fastidiosa using DAS-ELISA was isolated on perwinkle wilt (PW) medium plates (1) from citrus stems showing CVC symptoms, but not from asymptomatic trees. The isolated colonies were circular and opalescent with diameters of 2 to 3 mm and were clearly visible within 6 to 7 days after streaking. Petiole sections from symptomatic plants observed with scanning electron microscopy showed rod-shaped bacteria with rippled cell walls tightly packed in xylem vessels, as described for X. fastidiosa previously (2), and with transmission electron microscopy, the bacteria were morphologically similar to those reported previously for CVC (2). To our knowledge, this is the first report of X. fastidiosa associated with citrus in Costa Rica. References: (1) M. J. Davis et al. Curr. Microbiol. 6:309, 1981. (2) J. S. Hartung et al. Phytopathology 84:591, 1994. (3) R. F. Lee et al. Summa Phytopathol. 19:123, 1993. (4) V. Rossetti et al. 1990, C.R. Acad. Sci. (Paris) 310:345-349.
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Affiliation(s)
- E Aguilar
- Centro de Investigacion en Biología Celular y Molecular (CIBCM), Universidad de Costa Rica, San José, Costa Rica
| | - W Villalobos
- Centro de Investigacion en Biología Celular y Molecular (CIBCM), Universidad de Costa Rica, San José, Costa Rica
| | - L Moreira
- CIBCM, Facultad de Ciencias Agroalimentarias, Universidad de Costa Rica, San José, Costa Rica
| | | | - E W Kitajima
- Departamento de Entomologia, Fitopatologia e Zoologia Agrícola, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, CP 9, 13418-900, Piracicaba, SP, Brazil
| | - C Rivera
- CIBCM, Facultad de Microbiologia, Universidad de Costa Rica, San José, Costa Rica
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Villalobos W, Moreira L, Derrick KS, Beretta MJG, Rivera C. First Report of Citrus Blight in Costa Rica. Plant Dis 2005; 89:108. [PMID: 30795302 DOI: 10.1094/pd-89-0108c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Citrus blight (CB), causing a chronic decline of citrus, has been an important disease in Florida for over 100 years. CB was first reported in Brazil in the 1980s and is now responsible for the removal of nearly 10% of the trees from production annually. No causal agent has been identified, but CB has been root-graft transmitted to healthy trees, suggesting that the causal agent is infectious (3). Since 1997, CB symptoms were observed in several groves in northern Costa Rica, the most important citrus area of approximately 25,000 ha. Symptoms observed include a general decline and wilt of the tree canopy, off-color leaves, leaf drop, twig dieback, small fruit, delayed blossom, poor growth, and death. A survey near Guanacaste revealed CB symptoms in 7-yr-old Valencia and Pineapple orange trees (Citrus sinensis (L.) Osbeck) grafted on Carrizo citrange (C. sinensis (L.) Osbeck × Poncirus trifoliata (L.) Raf.) rootstock. Since 1997, 6% of the trees in this area have been replanted annually because of CB symptoms. Similar situations were observed in other groves in the northern citrus area. Dot immunobinding assays (DIBA) (1) were used to detect the P12 protein associated with CB with 20 of 22 trees showing CB-like symptoms giving a positive test. Zinc (Zn) accumulation in trunk wood and water uptake tests were done according to Roistacher (2) in 8 healthy and 20 symptomatic trees which were positive for CB using DIBA. The average Zn concentration of 16 declining trees was 4.6 ± 1.9, whereas the average concentration for 8 healthy trees was 2.0 ± 0.9. The average water uptake in 1 min was 14 ml for healthy trees, and virtually zero for the 20 symptomatic trees. These diagnostic tests confirm the presence of CB in the northern citrus area of Costa Rica, and the surveys indicate the disease is beginning to spread and become economically important. To our knowledge, this is the first report of CB in commercial citrus in Costa Rica. References: (1) K. S. Derrick et al. Plant Dis. 74:168, 1990. (2) C. N. Roistacher. Pages 57-66 in: Graft-Transmissible Diseases of Citrus. Handbook for Detection and Diagnosis. C.N. Roistacher, ed. Food and Agriculture Organization, Rome, 1991. (3) D. P. H. Tucker et al. Plant Dis. 68:979, 1984.
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Affiliation(s)
- W Villalobos
- Centro de Investigación en Biología Celular y Molecular (CIBCM), Universidad de Costa Rica, San José
| | - L Moreira
- CIBCM, Facultad de Ciencias Agroalimentarias, Universidad de Costa Rica, San José
| | - K S Derrick
- University of Florida, CREC, Lake Alfred; R. F. Lee, USDA ARS National Clonal Germplasm Repository for Citrus and Dates, Riverside, CA
| | - M J G Beretta
- University of Florida, CREC, Lake Alfred; R. F. Lee, USDA ARS National Clonal Germplasm Repository for Citrus and Dates, Riverside, CA
| | - C Rivera
- CIBCM, Facultad de Microbiología, Universidad de Costa Rica, San José. Plant Dis. 89:108, 2005
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Rodrigues JCV, Rodriguez CM, Moreira L, Villalobos W, Rivera C, Childers CC. Occurrence of Coffee ringspot virus, a Brevipalpus Miteborne Virus in Coffee in Costa Rica. Plant Dis 2002; 86:564. [PMID: 30818702 DOI: 10.1094/pdis.2002.86.5.564b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Coffee ringspot virus (CoRSV) (family Rhabdoviridae) is transmitted by Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae). Coffee ringspot disease was first reported in coffee plants from Brazil in 1939 (1). In August 2000, severe symptoms of concentric ringspots and "oak leaf" patterns on coffee leaves (Coffea arabica L. cv. Catuai) were observed during field inspections conducted in two areas of San Gabriel de Desamparados, Costa Rica. The disease caused premature fruit and leaf drop in the affected plants. Some areas within the ringspot lesions remained green on senescent leaves. Because CoRSV particles remain restricted to lesion areas (1), this virus has not been purified, and antiserum for virus detection is not available. Therefore, leaves with symptoms were collected and examined by transmission electron microscopy. In ultrathin sections of symptomatic leaves, arrays of rhabdovirus-like particles were associated with the nucleus as described for CoRSV (2). Healthy tissues did not contain similar arrays of bacilliform and bullet-shaped particles. Twenty mites collected from the infected plants at the same locations and time were slide-mounted and identified as B. phoenicis. High populations of this mite were also observed infesting plants of Cajanus cajan L. that were intercropped with coffee at the same location. Sweet orange trees growing in the same fields as shade for the coffee did not show symptoms of citrus leprosis, a disease caused by another Brevipalpus-transmitted virus that was recently reported in Panama (3). To our knowledge, this is the first report of a virus similar to CoRSV in Costa Rica. The spread of this virus, presumably CoRSV, could seriously affect the coffee industry throughout Central America by increasing production costs. It may be necessary to apply one or more foliar acaricides to effectively control the mite vector. References: (1) A. Bitancourt. O. Biol. 5:33, 1939. (2) C. M. Chagas et al. Phytopathol. Z. 102:100, 1981. (3) F. S. Dominguez et al. Plant Dis. 85:228, 2001.
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Affiliation(s)
- J C V Rodrigues
- Instituto Agronômico de Campinas/Centro de Citricultura Sylvio Moreira, Caixa Postal 04,13490-970 Cordeiropolis, SP, Brazil. Bolsista do CNPq-Brasil
| | - C M Rodriguez
- ICAFE, Aparts. 131-3009-37-1000 San Jose, Costa Rica
| | | | | | - C Rivera
- Universidad de Costa Rica, San Jose
| | - C C Childers
- Citrus Research and Education Center, University of Florida, 700 Experiment Station Road, Lake Alfred 33850-2299
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Villalobos W, Moreira L, Rivera C, Bottner KD, Lee IM. First Report of an Aster Yellows Subgroup 16SrI-B Phytoplasma Infecting Chayote in Costa Rica. Plant Dis 2002; 86:330. [PMID: 30818630 DOI: 10.1094/pdis.2002.86.3.330c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
An outbreak of a witches' broom disease affected approximately 20% of plants in several chayote (Sechium edule (Jacq.) Schwartz) fields in the commercial production area of the Ujarrás Valley, Cartago Province, Costa Rica during 2000 and 2001. Affected chayote plants exhibited symptoms, including basal proliferation with severe foliage reduction, aborted flowers, and deformed fruits, suggestive of phytoplasmal infection. Two other symptomatic cucurbit species growing near the chayote fields were also identified. These species were tacaco plants (S. tacaco (Pitt.) C. Jeffrey), an edible cucurbit for domestic marketing in Costa Rica, showing severe size reduction of leaves and fruits, and Rytidostylis carthaginensis (Jacq.) Kuntze, a weed in chayote and tacaco fields, exhibiting abnormal tendril proliferation. Plants were analyzed for phytoplasma infection by a nested polymerase chain reaction (PCR) assay, using the universal rRNA primer pair P1/P7 followed by R16F2n/R16R2 (2). Phytoplasmas were detected in all symptomatic samples (18 chayote, 6 tacaco, and 3 weed) tested but were undetectable in all asymptomatic samples (10 chayote, 6 tacaco, and 2 weed). Restriction fragment length polymorphism (RFLP) analysis of PCR products (16S rDNA sequences) by separate digestion with eight restriction enzymes (RsaI, HhaI, KpnI, BfaI, HaeIII, HpaII, AluI, MseI) revealed that a phytoplasma belonging to subgroup 16SrI-B in the aster yellows phytoplasma group (16SrI) was associated with chayote witches' broom (CWB). The same or very similar phytoplasmas were found in both symptomatic tacaco and R. carthaginensis plants. Phylogenetic analysis of 16SrDNA sequences also confirmed the CWB phytoplasma to be most similar to members of subgroup 16SrI-B. Similar diseases in chayote and other cucurbits have been reported in Brazil (3), Taiwan (1), and Mexico (4). The CWB phytoplasma differs from the phytoplasma (16SrIII-J subgroup) associated with chayote in Brazil. The identities of phytoplasmas associated with cucurbits in Taiwan and Mexico are unknown. The occurrence of an aster yellows group phytoplasma in chayote may pose a potential threat to continued production and exportation of this cash crop. To our knowledge, this is the first report of 16SrI-B subgroup phytoplasmas in naturally infected cucurbits in Costa Rica. References: (1) T. G. Chou et al. Plant Dis. Rep. 60:378, 1976. (2) I.-M. Lee et al. Int. J. Syst. Bacteriol. 48:1153, 1998. (3) H. G. Montano et al. Plant Dis. 84:429, 2000. (4) E. Olivas. Rev. Fitopatol. (Lima) 13:14, 1978.
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Affiliation(s)
- W Villalobos
- Centro de Investigación en Biología Celular y Molecular, Universidad de Costa Rica, Costa Rica
| | - L Moreira
- Centro de Investigación en Biología Celular y Molecular, Universidad de Costa Rica, Costa Rica
| | - C Rivera
- Centro de Investigación en Biología Celular y Molecular, Universidad de Costa Rica, Costa Rica
| | - K D Bottner
- Molecular Plant Pathology Laboratory, USDA-ARS, Beltsville, MD 20705
| | - I-M Lee
- Molecular Plant Pathology Laboratory, USDA-ARS, Beltsville, MD 20705
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Abstract
In 1995, severe symptoms were observed on 'Caturra' and 'Catuaí' coffee (Coffea arabica L.) varieties in farms in the southern part of the Central Valley in Costa Rica. Symptoms were reduced leaf size, malformation of leaves, curling of leaf edges, shortening of internodes, and severe leaf chlorotic mosaic, which sometimes became necrotic. Abortion of flowers and young beans was also observed, with a reduction in yield. Plants also showed irregular growth with an atypical curling appearance that gave rise to the Spanish name "crespera." Ten and three healthy plants were inoculated by grafting in the greenhouse, using infected and healthy budwoods, respectively. Approximately 6 months after inoculation, 3 of 10 grafted plants with infected budwoods showed symptoms of leaf chlorosis, curling, and malformation of leaves and bunched new flushes. Samples of 39 symptomatic plants collected from the field and samples of 3 healthy plants maintained in the greenhouse were tested by enzyme-linked immunosorbent assay (ELISA). All (100%) analyzed symptomatic samples were positive for X. fastidiosa, and all healthy controls were negative. The symptoms observed in Costa Rica are different from those described for coffee leaf scorch in Brazil (1,2), but the climatological conditions and soil type present in Costa Rica are also very different from the areas where X. fastidiosa occurs in Brazil. Leafhoppers were collected randomly in one of the most affected regions. Graphocephala permagna and Erythrogonia sonora were the most frequent insect species found associated with coffee. In ELISA, 34.5% (10 of 29) and 23.8% (5 of 21) of the collected specimens belonging to G. permagna and E. sonora, respectively, tested positive for X. fastidiosa. These positive ELISAs do not necessarily mean that the insect is a vector. The results presented here extend the known geographic distribution of X. fastidiosa. To our knowledge, this is the first report of X. fastidiosa in coffee in Costa Rica. References: (1) M. J. G. Beretta et al. Plant Dis. 80:821, 1996. (2) de Lima et al. Plant Dis. 82:94, 1998.
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Affiliation(s)
| | | | - W Villalobos
- Centro de Investigación en Biología Celular y Molecular, Universidad de Costa Rica
| | - L Moreira
- Centro de Investigación en Biología Celular y Molecular, Universidad de Costa Rica
| | - C Rivera
- Centro de Investigación en Biología Celular y Molecular, Universidad de Costa Rica
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