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Diakite I, Martins B, Owusu-Edusei K, Palmer C, Patterson-Lomba O, Gomez-Lievano A, Zion A, Simpson R, Daniels V, Elbasha E. Structured Literature Review to Identify Human Papillomavirus's Natural History Parameters for Dynamic Population Models of Vaccine Impacts. Infect Dis Ther 2024:10.1007/s40121-024-00952-z. [PMID: 38589763 DOI: 10.1007/s40121-024-00952-z] [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: 11/10/2023] [Accepted: 02/23/2024] [Indexed: 04/10/2024] Open
Abstract
Human papillomavirus (HPV) is a common sexually transmitted virus that can cause cervical cancer and other diseases. Dynamic transmission models (DTMs) have been developed to evaluate the health and economic impacts of HPV vaccination. These models typically include many parameters, such as natural history of the disease, transmission, demographic, behavioral, and screening. To ensure the accuracy of DTM projections, it is important to parameterize them with the best available evidence. This study aimed to identify and synthesize data needed to parametrize DTMs on the natural history of HPV infection and related diseases. Parameters describing data of interest were grouped by their anatomical location (genital warts, recurrent respiratory papillomatosis, and cervical, anal, vaginal, vulvar, head and neck, and penile cancers), and natural history (progression, regression, death, cure, recurrence, detection), and were identified through a systematic literature review (SLR) and complementary targeted literature reviews (TLRs). The extracted data were then synthesized by pooling parameter values across publications, and summarized using the range of values across studies reporting each parameter and the median value from the most relevant study. Data were extracted and synthesized from 223 studies identified in the SLR and TLRs. Parameters frequently reported pertained to cervical cancer outcomes, while data for other anatomical locations were less available. The synthesis of the data provides a large volume of parameter values to inform HPV DTMs, such as annual progression rates from cervical intraepithelial neoplasia (CIN) 1 to CIN 2+ (median of highest quality estimate 0.0836), CIN 2 to CIN 3+ (0.0418), carcinoma in situ (CIS) 2 to local cancer+ (0.0396), and regional to distant cancer (0.0474). Our findings suggest that while there is a large body of evidence on cervical cancer, parameter values featured substantial heterogeneity across studies, and further studies are needed to better parametrize the non-cervical components of HPV DTMs.
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Affiliation(s)
- Ibrahim Diakite
- Health Economic and Decision Sciences, Merck & Co., Inc., Rahway, NJ, 07065, USA.
- Merck & Co., Inc. Biostatistics and Research Decision Sciences (BARDS), Health Economic and Decision Sciences (HEDS), Vaccines, WP 37A-150 770 Sumneytown Pike, 1st Floor, West Point, PA, 19486, USA.
| | - Bruno Martins
- Analysis Group, Inc, 111 Huntington Avenue, 14th Floor, Boston, MA, 02199, USA
| | - Kwame Owusu-Edusei
- Health Economic and Decision Sciences, Merck & Co., Inc., Rahway, NJ, 07065, USA
| | - Cody Palmer
- Health Economic and Decision Sciences, Merck & Co., Inc., Rahway, NJ, 07065, USA
| | | | | | - Abigail Zion
- Analysis Group, Inc, 111 Huntington Avenue, 14th Floor, Boston, MA, 02199, USA
| | - Ryan Simpson
- Analysis Group, Inc, 111 Huntington Avenue, 14th Floor, Boston, MA, 02199, USA
| | - Vincent Daniels
- Health Economic and Decision Sciences, Merck & Co., Inc., Rahway, NJ, 07065, USA
| | - Elamin Elbasha
- Health Economic and Decision Sciences, Merck & Co., Inc., Rahway, NJ, 07065, USA
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Kimball AB, Delevry D, Yang M, Chuang CC, Wang Z, Bégo-Le-Bagousse G, Martins B, Wu E, Shumel B, Wang J, Sierka D, Chao J, Strober B. Long-Term Effectiveness of Dupilumab in Patients with Atopic Dermatitis: Results up to 3 Years from the RELIEVE-AD Study. Dermatol Ther (Heidelb) 2023; 13:2107-2120. [PMID: 37552431 PMCID: PMC10442302 DOI: 10.1007/s13555-023-00965-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 04/12/2023] [Accepted: 06/12/2023] [Indexed: 08/09/2023] Open
Abstract
INTRODUCTION Atopic dermatitis (AD) can require long-term therapy. Few real-world studies have evaluated long-term effectiveness from the patients' perspective. The aim of this study was to evaluate patient-reported outcomes (PROs) during long-term dupilumab treatment. METHODS Adults with moderate-to-severe AD who initiated dupilumab through the US manufacturer patient support program and participated in RELIEVE-AD (a prospective patient survey study with a 12-month follow-up) were recontacted 30-36 months post-initiation regardless of current dupilumab use. The online questionnaire consisted of PROs, including the Atopic Dermatitis Control Tool (ADCT), use of concomitant AD therapies, satisfaction with current therapy, global change in itch relative to before dupilumab initiation, non-itch skin symptoms (skin pain/soreness, hot/burning feeling, and sensitivity to touch), flares, Dermatology Life Quality Index, sleep problems, and the AD-specific Work Productivity and Activity Impairment Questionnaire. RESULTS Of 698 patients who initiated dupilumab (baseline) and were recontacted, 425 completed the 30-36-month survey. Significant reductions from baseline were reported in concomitant AD therapy use (P < 0.05); 54.4% reported not using other AD medications vs. 12.8% at baseline. At 30-36 months, all results (non-itch skin symptoms, flares, sleep problems, health-related quality of life work/activity impairment, disease control, and treatment satisfaction) were similar to or incrementally better than the 12-month timepoint, with significant improvements vs. baseline (P < 0.001). Global change in itch was reported as "very much better" by 75.3% of respondents. Adequate disease control (score < 7 on ADCT) was reported by 80.7% of respondents, and 86.8% were satisfied with the treatment. CONCLUSIONS In clinical practice settings, patient-reported benefits of dupilumab were maintained in survey respondents during long-term treatment up to 36 months while the use of concomitant AD therapies reduced.
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Affiliation(s)
- Alexa B Kimball
- Harvard Medical School, Beth Israel Deaconess Medical Center, 375 Longwood Avenue, Boston, MA, 02215, USA.
| | | | - Min Yang
- Analysis Group, Inc., Boston, MA, USA
| | | | - Zhixiao Wang
- Regeneron Pharmaceuticals Inc., Tarrytown, NY, USA
| | | | | | - Eric Wu
- Analysis Group, Inc., Boston, MA, USA
| | - Brad Shumel
- Regeneron Pharmaceuticals Inc., Tarrytown, NY, USA
| | | | | | | | - Bruce Strober
- Yale University School of Medicine, New Haven, CT, USA
- Central Connecticut Dermatology, Cromwell, CT, USA
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Lenz L, Martins B, Andrade de Paulo G, Kawaguti FS, Baba ER, Uemura RS, Gusmon CC, Geiger SN, Moura RN, Pennacchi C, Simas de Lima M, Safatle-Ribeiro AV, Hashimoto CL, Ribeiro U, Maluf-Filho F. Underwater versus conventional EMR for nonpedunculated colorectal lesions: a randomized clinical trial. Gastrointest Endosc 2023; 97:549-558. [PMID: 36309072 DOI: 10.1016/j.gie.2022.10.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 10/06/2022] [Accepted: 10/16/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS Conventional endoscopic mucosal resection (CEMR) is the standard modality for removing nonpedunculated colorectal lesions. Underwater endoscopic mucosal resection (UEMR) has emerged as an alternative method. There are few comparative studies between these techniques, especially evaluating recurrence. Therefore, the purpose of this trial was to compare CEMR and UEMR for the resection of colorectal lesions with respect to efficacy, safety, and recurrence rate. METHODS This was a randomized controlled trial of UEMR versus CEMR for naïve and nonpedunculated lesions measuring between 10 and 40 mm. The primary outcome was adenoma recurrence at 6 months after the resection. Secondary outcomes were rates of technical success, en bloc resection, and adverse events. Block randomization was used to assign patients. Tattooing was performed to facilitate localization of the scars and eventual recurrences. Endoscopic follow-up was scheduled at 6 months after the procedure. The sites of resections were examined with white-light imaging, narrow-band imaging (NBI), and conventional chromoscopy with indigo carmine followed by biopsies. RESULTS One hundred five patients with 120 lesions were included, with a mean size of 17.5 ± 7.1 (SD) mm. Sixty-one lesions were resected by UEMR and 59 by CEMR. The groups were similar at baseline regarding age, sex, average size, and histologic type. Lesions in the proximal colon in the CEMR group corresponded to 83% and in the UEMR group to 67.8% (P = .073). There was no difference between groups regarding success rate (1 failure in each group) and en bloc resection rate (60.6% UEMR vs 54.2% CEMR, P = .48). Intraprocedural bleeding was observed in 5 CEMRs (8.5%) and 2 UEMRs (3.3%) (P = .27). There was no perforation or delayed hemorrhage in either groups. Recurrence rate was higher in the CEMR arm (15%) than in the UEMR arm (2%) (P = .031). Therefore, the relative risk of 6-month recurrence rate in the CEMR group was 7.5-fold higher (95% CI, 0.98-58.20), with a number needed to treat of 7.7 (95% CI, 40.33-4.22). The higher recurrence rate in the CEMR group persisted only for lesions measuring 21 to 40 mm (35.7% vs 0%; P = .04). CONCLUSION This study demonstrated that UEMR was associated with a lower adenoma recurrence rate than was CEMR. Both endoscopic techniques were effective and had similar rates of adverse events for the treatment of nonpedunculated colorectal lesions.
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Affiliation(s)
- Luciano Lenz
- Instituto do Cancer do Estado de São Paulo, São Paulo, Brazil; Fleury Medicina e Saude, São Paulo, São Paulo, Brazil.
| | - Bruno Martins
- Instituto do Cancer do Estado de São Paulo, São Paulo, Brazil; Fleury Medicina e Saude, São Paulo, São Paulo, Brazil
| | | | - Fabio Shiguehissa Kawaguti
- Instituto do Cancer do Estado de São Paulo, São Paulo, Brazil; Fleury Medicina e Saude, São Paulo, São Paulo, Brazil
| | | | | | | | | | | | | | | | - Adriana Vaz Safatle-Ribeiro
- Instituto do Cancer do Estado de São Paulo, São Paulo, Brazil; Centro de Diagnóstico em Gastroenterologia, São Paulo, São Paulo, Brazil
| | | | - Ulysses Ribeiro
- Instituto do Cancer do Estado de São Paulo, São Paulo, Brazil; Centro de Diagnóstico em Gastroenterologia, São Paulo, São Paulo, Brazil
| | - Fauze Maluf-Filho
- Instituto do Cancer do Estado de São Paulo, São Paulo, Brazil; Centro de Diagnóstico em Gastroenterologia, São Paulo, São Paulo, Brazil
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Martins B, Novo JP, Fonseca É, Raposo R, Sardão VA, Pereira F, Oriá RB, Fontes-Ribeiro C, Malva J. Necrotic-like BV-2 microglial cell death due to methylmercury exposure. Front Pharmacol 2022; 13:1003663. [PMID: 36408241 PMCID: PMC9667718 DOI: 10.3389/fphar.2022.1003663] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/18/2022] [Indexed: 12/01/2022] Open
Abstract
Methylmercury (MeHg) is a dangerous environmental contaminant with strong bioaccumulation in the food chain and neurotoxic properties. In the nervous system, MeHg may cause neurodevelopment impairment and potentially interfere with immune response, compromising proper control of neuroinflammation and aggravating neurodegeneration. Human populations are exposed to environmental contamination with MeHg, especially in areas with strong mining or industrial activity, raising public health concerns. Taking this into consideration, this work aims to clarify pathways leading to acute toxic effects caused by MeHg exposure in microglial cells. BV-2 mouse microglial cells were incubated with MeHg at different concentrations (0.01, 0.1, 1 and 10 µM) for 1 h prior to continuous Lipopolysaccharide (LPS, 0.5 μg/ml) exposure for 6 or 24 h. After cell exposure, reactive oxygen species (ROS), IL-6 and TNF-α cytokines production, inducible nitric oxide synthase (iNOS) expression, nitric oxide (NO) release, metabolic activity, propidium iodide (PI) uptake, caspase-3 and -9 activities and phagocytic activity were assessed. MeHg 10 µM decreased ROS formation, the production and secretion of pro-inflammatory cytokines IL-6, TNF-α, iNOS immunoreactivity, the release of NO in BV-2 cells. Furthermore, MeHg 10 µM decreased the metabolic activity of BV-2 and increased the number of PI-positive cells (necrotic-like cell death) when compared to the respective control group. Besides, MeHg did not interfere with caspase activity or the phagocytic profile of cells. The short-term effects of a high concentration of MeHg on BV-2 microglial cells lead to impaired production of several pro-inflammatory mediators, as well as a higher microglial cell death via necrosis, compromising their neuroinflammatory response. Clarifying the mechanisms underlying MeHg-induced neurotoxicity and neurodegeneration in brain cells is relevant to better understand acute and long-term chronic neuroinflammatory responses following MeHg exposure.
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Affiliation(s)
- B. Martins
- Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, Coimbra, Portugal,Institute of Pharmacology and Experimental Therapeutics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal,Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
| | - J. P. Novo
- Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, Coimbra, Portugal,Institute of Pharmacology and Experimental Therapeutics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal,Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
| | - É. Fonseca
- Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, Coimbra, Portugal,Institute of Pharmacology and Experimental Therapeutics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal,Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
| | - R. Raposo
- Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, Coimbra, Portugal,Institute of Pharmacology and Experimental Therapeutics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal,Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal,Experimental Biology Core, Health Sciences Center, University of Fortaleza, Fortaleza, Brazil
| | - V. A. Sardão
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal,Center for Neuroscience and Cell Biology (CNC), UC Biotech, University of Coimbra, Cantanhede, Portugal
| | - F. Pereira
- Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, Coimbra, Portugal,Institute of Pharmacology and Experimental Therapeutics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal,Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
| | - R. B. Oriá
- Laboratory of Tissue Healing, Ontogeny, and Nutrition, Department of Morphology and Institute of Biomedicine, School of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - C. Fontes-Ribeiro
- Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, Coimbra, Portugal,Institute of Pharmacology and Experimental Therapeutics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal,Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
| | - J. Malva
- Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, Coimbra, Portugal,Institute of Pharmacology and Experimental Therapeutics, Faculty of Medicine, University of Coimbra, Coimbra, Portugal,Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal,*Correspondence: J. Malva,
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Trovisco R, Freitas C, Serino M, Ferreira P, Martins B, Coelho D, Melo N, Fernandes G, Magalhães A, Bastos HN. Predictors of lung entrapment in malignant pleural effusion. Pulmonology 2022:S2531-0437(22)00199-4. [PMID: 36180353 DOI: 10.1016/j.pulmoe.2022.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 04/18/2022] [Revised: 07/25/2022] [Accepted: 08/03/2022] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Malignant pleural effusion (MPE) is a common complication in advanced stages of malignancy and is associated with poor prognosis. Non-expandable lung (NEL) often occurs and its presence influences the MPE approach. Our main objective was to assess risk factors for malignant NEL. METHODS Patients diagnosed with pathologically confirmed MPE between January 2012 and December 2018 in our institution were retrospectively analyzed. Demographic and clinical data of patients were reviewed and compared according to the presence or absence of NEL. A univariate and multivariate binary logistic regression analysis were used to determine predictors of the development of NEL. RESULTS Of 365 patients included, 68 (18.6%) had NEL. After multivariate analysis, we found that loculated MPE (OR 8.63, 95%CI 4.30-17.33, p<0.001), complete hemithorax opacification (OR 2.81, 95%CI 1.17-6.76, p<0.021), lung cancer (OR 2.09, 95%CI 1.01-4.31, p=0.047) and higher effusion-serum LDH ratio (OR 1.09, 95%CI 1.00-1.17, p=0.039) were independent predictors of malignant NEL. There were no significant differences compared with expandable lung group regarding time from primary malignancy diagnosis to MPE diagnosis (3.0, IQR 0.0-75.8 vs 2.0, IQR 0.0-75.5 weeks, p=0.942) or MPE symptoms onset to MPE diagnosis (4.0, IQR 1.0-9.0 vs 3.0, IQR 1.0-9.0 weeks, p=0.497). Patients with NEL had a higher number of therapeutic pleural drainages (3.0, IQR 2.0-6.0 vs 2.0, IQR 1.0-3.0; p<0.001) and longer hospital stay (32.5, IQR 15.5-46.3 vs 21.0, IQR 11.0-36.0, p=0.007), measured in hospitalization days until the end of life, than patients with expandable lung. The rate of recurrence of pleural effusion was not significantly different between groups (p=0.291). Overall survival (OS) was 3.0 (95%CI, 2.3-3.7) months, regardless of lung expandability (p=0.923). CONCLUSION Loculated MPE, complete hemithorax opacification, lung cancer and a higher effusion-serum LDH ratio were found to be independent predictors for NEL. These patients underwent thoracocenteses more frequently and had longer hospitalization days, although without significant impact in the OS.
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Affiliation(s)
- R Trovisco
- Faculty of Medicine, University of Porto, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal
| | - C Freitas
- Faculty of Medicine, University of Porto, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal; Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - M Serino
- Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - P Ferreira
- Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - B Martins
- Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - D Coelho
- Faculty of Medicine, University of Porto, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal; Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - N Melo
- Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - G Fernandes
- Faculty of Medicine, University of Porto, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal; Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - A Magalhães
- Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - H N Bastos
- Faculty of Medicine, University of Porto, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal; Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal; Institute for Research and Innovation in Health, University of Porto, Rua Alfredo Allen, 208, 4200-136 Porto, Portugal.
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Delevry D, Chao J, Chuang CC, Yang M, Shumel B, Martins B, Bego-Le-Bagousse G, Sierka D, Wang Z, Strober B. 33325 Long-term dupilumab effectiveness on health-related quality of life (HRQoL) and work productivity in atopic dermatitis (AD): Results from RELIEVE-AD. J Am Acad Dermatol 2022. [DOI: 10.1016/j.jaad.2022.06.749] [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]
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García-Mas A, Martins B, Núñez A, Ponseti FJ, Trigueros R, Alias A, Caraballo I, Aguilar-Parra JM. Can we speak of a negative psychological tetrad in sports? A probabilistic Bayesian study on competitive sailing. PLoS One 2022; 17:e0272550. [PMID: 35951590 PMCID: PMC9371297 DOI: 10.1371/journal.pone.0272550] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 07/22/2022] [Indexed: 12/05/2022] Open
Abstract
Introduction Researchers display an interest in studying aspects like the mental health of high-performance athletes; the dark side of sport, or the earliest attempts to study the so-called dark triad of personality in both initiation and high-performance athletes. Therefore, the objective of this paper is to determine the possible existence and magnitude of negative psychological aspects within a population of competition sailors and from a probabilistic point of view, using Bayesian Network analysis. Methods The study was carried out on 235 semi-professional sailors of the 49er Class, aged between 16 and 52 years (M = 24.66; SD = 8.03). Results The results show the existence of a Negative Tetrad—formed by achievement burnout, anxiety due to concentration disruption, amotivation and importance given to error—as a probabilistic product of the psychological variables studied: motivation, anxiety, burnout and fear of error. Conclusion These results, supported by Bayesian networks, show holistically the influence of the social context on the psychological and emotional well-being of the athlete during competition at sea.
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Affiliation(s)
- Alejandro García-Mas
- Research Group on Physical Activity and Sport (GICAFE), University of the Balearic Islands, Illes Balears, Spain
| | - Bruno Martins
- Research Group on Physical Activity and Sport (GICAFE), University of the Balearic Islands, Illes Balears, Spain
| | - Antonio Núñez
- Research Group on Physical Activity and Sport (GICAFE), University of the Balearic Islands, Illes Balears, Spain
| | - Francisco J. Ponseti
- Research Group on Physical Activity and Sport (GICAFE), University of the Balearic Islands, Illes Balears, Spain
| | - Rubén Trigueros
- Department of Psychology, Hum-878 Research Team, Health Research Centre, University of Almería, Almería, Spain
- * E-mail:
| | - Antonio Alias
- Department of Education, University of Almería, Almería, Spain
| | | | - José M. Aguilar-Parra
- Department of Psychology, Hum-878 Research Team, Health Research Centre, University of Almería, Almería, Spain
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Nobre Moura R, Kuboki Y, Baba ER, Safatle-Ribeiro A, Martins B, de Paulo GA, Tolentino LL, de Lima MS, Kulcsar MA, Sallum RAA, Ribeiro U, Maluf-Filho F. Long-term results of an endoscopic screening program for superficial esophageal cancer in patients with head and neck squamous cell carcinoma. Endosc Int Open 2022; 10:E200-E208. [PMID: 35178338 PMCID: PMC8847053 DOI: 10.1055/a-1675-2334] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 10/07/2021] [Indexed: 11/01/2022] Open
Abstract
Background and study aims Patients with head and neck squamous cell carcinoma (HNSCC) are at risk of a second primary tumor in the gastrointestinal tract, most commonly in the esophagus. Screening these patients for esophageal carcinoma may help detect asymptomatic dysplasia and early cancer, thus allowing curative treatment and more prolonged survival, but the impact of endoscopic screening remains uncertain. Here we aimed to describe the long-term results of an esophageal SCC screening program in patients with head and neck cancer in terms of prevalence, associated risk factors, and survival. Patients and methods We performed an observational study of a prospectively collected database including patients with HNSCC who had undergone high-definition endoscopy with chromoscopy between 2010 and 2018 at a Brazilian tertiary academic center. Results The study included 1,888 patients. The esophageal SCC prevalence was 7.9 %, with the majority (77.8 %) being superficial lesions. Significant risk factors for esophageal high-grade dysplasia (HGD) and invasive cancer included tumors of the oral cavity and oropharynx and the presence of low-grade dysplasia (LGD). Overall survival (OS) was significantly shorter among patients in whom esophageal cancer was diagnosed at an advanced stage ( P < .001). OS did not significantly differ between patients with HGD and early esophageal cancer versus those without esophageal cancer ( P = .210) Conclusions Endoscopic screening for superficial esophageal neoplasia in patients with HNSCC improves esophageal cancer detection. Screening could potentially benefit patients with primary cancer located at the oropharynx or oral cavity. In addition, the detection of esophageal LGD indicates a need for endoscopic surveillance.
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Affiliation(s)
- Renata Nobre Moura
- Department of Gastroenterology, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Yeda Kuboki
- Department of Gastroenterology, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Elisa Ryoka Baba
- Department of Gastroenterology, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Adriana Safatle-Ribeiro
- Department of Gastroenterology, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Bruno Martins
- Department of Gastroenterology, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Gustavo Andrade de Paulo
- Department of Gastroenterology, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Luciano Lenz Tolentino
- Department of Gastroenterology, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Marcelo Simas de Lima
- Department of Gastroenterology, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Marco Aurelio Kulcsar
- Discipline of Head and Neck Surgery, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Rubens Antonio Aissar Sallum
- Department of Gastroenterology, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Ulysses Ribeiro
- Department of Gastroenterology, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Fauze Maluf-Filho
- Department of Gastroenterology, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil,Laboratorio de Investigacao Medica, LIM-37, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
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Zafra AO, Martins B, Ponseti-Verdaguer FJ, Ruiz-Barquín R, García-Mas A. It Is Not Just Stress: A Bayesian Approach to the Shape of the Negative Psychological Features Associated with Sport Injuries. Healthcare (Basel) 2022; 10:236. [PMID: 35206851 PMCID: PMC8872058 DOI: 10.3390/healthcare10020236] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/19/2022] [Accepted: 01/25/2022] [Indexed: 02/02/2023] Open
Abstract
The main objective of this study is to extend the stress and injury model of Andersen and Williams to other "negative" psychological variables, such as anxiety and depression, encompassed in the conceptual model of Olmedilla and García-Mas. The relationship is studied of this psychological macro-variable with two other variables related to sports injuries: the search for social support and the search for connections between risk and the environment of athletes. A combination of classic methods and probabilistic approaches through Bayesian networks is used. The study samples comprised 455 traditional and indoor football players (323 male and 132 female) of an average age of 21.66 years (±4.46). An ad hoc questionnaire was used for the corresponding sociodemographic data and data relating to injuries. The variables measured were the emotional states of: stress, depression and anxiety, the attitude towards risk-taking in different areas, and the evaluation of the perception of social support. The results indicate that the probabilistic analysis conducted gives a boost to the classic model focused on stress, as well as the conceptual planning derived from the Global Model of Sports Injuries (GMSI), supporting the possibility of extending the stress model to other variables, such as anxiety and depression ("negative" triad).
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Affiliation(s)
- Aurelio Olmedilla Zafra
- Department of Personality, Evaluation, and Psychological Treatment, Campus Regional Excellence Mare Nostrum, University of Murcia, 30100 Murcia, Spain;
| | - Bruno Martins
- GICAFE (Research Group of Sports Sciences—UIB), University of Lisbon, 1649-004 Lisbon, Portugal;
| | - F. Javier Ponseti-Verdaguer
- GICAFE (Research Group of Sports Sciences), Department of Pedagogy, University of the Balearic Islands, 07122 Palma, Spain
| | - Roberto Ruiz-Barquín
- Department of Evolutive and Educational Psychology, Autonomous University of Madrid, 28049 Madrid, Spain;
| | - Alejandro García-Mas
- GICAFE (Research Group of Sports Sciences), Department of Psychology, University of the Balearic Islands, 07122 Palma, Spain;
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10
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Caled D, Silva MJ, Martins B, Won M. Multi-label classification of legislative contents with hierarchical label attention networks. Int J Digit Libr 2021. [DOI: 10.1007/s00799-021-00307-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Lima M, Lima G, Pennacchi C, Scomparin R, de Paulo G, Martins B, Maluf-Filho F. A simple way to deliver vacuum therapy: the tube-in-tube endoluminal vacuum therapy modification. Endoscopy 2021; 53:E317. [PMID: 33075825 DOI: 10.1055/a-1270-6582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 12/10/2022]
Affiliation(s)
- Marcelo Lima
- São Paulo University Faculty of Medicine, Cancer Institute, Endoscopy Division, São Paulo, Brazil.,Hospital Beneficência Portuguesa de São Paulo, Division of Endoscopy, São Paulo, Brazil
| | - Gustavo Lima
- São Paulo University Faculty of Medicine, Cancer Institute, Endoscopy Division, São Paulo, Brazil
| | - Caterina Pennacchi
- São Paulo University Faculty of Medicine, Cancer Institute, Endoscopy Division, São Paulo, Brazil
| | - Rodrigo Scomparin
- São Paulo University Faculty of Medicine, Cancer Institute, Endoscopy Division, São Paulo, Brazil
| | - Gustavo de Paulo
- São Paulo University Faculty of Medicine, Cancer Institute, Endoscopy Division, São Paulo, Brazil
| | - Bruno Martins
- São Paulo University Faculty of Medicine, Cancer Institute, Endoscopy Division, São Paulo, Brazil
| | - Fauze Maluf-Filho
- São Paulo University Faculty of Medicine, Cancer Institute, Endoscopy Division, São Paulo, Brazil.,Hospital Beneficência Portuguesa de São Paulo, Division of Endoscopy, São Paulo, Brazil
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12
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Schneider DK, Shi W, Andi B, Jakoncic J, Gao Y, Bhogadi DK, Myers SF, Martins B, Skinner JM, Aishima J, Qian K, Bernstein HJ, Lazo EO, Langdon T, Lara J, Shea-McCarthy G, Idir M, Huang L, Chubar O, Sweet RM, Berman LE, McSweeney S, Fuchs MR. FMX - the Frontier Microfocusing Macromolecular Crystallography Beamline at the National Synchrotron Light Source II. J Synchrotron Radiat 2021; 28:650-665. [PMID: 33650577 PMCID: PMC7941291 DOI: 10.1107/s1600577520016173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 12/11/2020] [Indexed: 05/26/2023]
Abstract
Two new macromolecular crystallography (MX) beamlines at the National Synchrotron Light Source II, FMX and AMX, opened for general user operation in February 2017 [Schneider et al. (2013). J. Phys. Conf. Ser. 425, 012003; Fuchs et al. (2014). J. Phys. Conf. Ser. 493, 012021; Fuchs et al. (2016). AIP Conf. Proc. SRI2015, 1741, 030006]. FMX, the micro-focusing Frontier MX beamline in sector 17-ID-2 at NSLS-II, covers a 5-30 keV photon energy range and delivers a flux of 4.0 × 1012 photons s-1 at 1 Å into a 1 µm × 1.5 µm to 10 µm × 10 µm (V × H) variable focus, expected to reach 5 × 1012 photons s-1 at final storage-ring current. This flux density surpasses most MX beamlines by nearly two orders of magnitude. The high brightness and microbeam capability of FMX are focused on solving difficult crystallographic challenges. The beamline's flexible design supports a wide range of structure determination methods - serial crystallography on micrometre-sized crystals, raster optimization of diffraction from inhomogeneous crystals, high-resolution data collection from large-unit-cell crystals, room-temperature data collection for crystals that are difficult to freeze and for studying conformational dynamics, and fully automated data collection for sample-screening and ligand-binding studies. FMX's high dose rate reduces data collection times for applications like serial crystallography to minutes rather than hours. With associated sample lifetimes as short as a few milliseconds, new rapid sample-delivery methods have been implemented, such as an ultra-high-speed high-precision piezo scanner goniometer [Gao et al. (2018). J. Synchrotron Rad. 25, 1362-1370], new microcrystal-optimized micromesh well sample holders [Guo et al. (2018). IUCrJ, 5, 238-246] and highly viscous media injectors [Weierstall et al. (2014). Nat. Commun. 5, 3309]. The new beamline pushes the frontier of synchrotron crystallography and enables users to determine structures from difficult-to-crystallize targets like membrane proteins, using previously intractable crystals of a few micrometres in size, and to obtain quality structures from irregular larger crystals.
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Affiliation(s)
| | - Wuxian Shi
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Babak Andi
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Jean Jakoncic
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Yuan Gao
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | | | - Stuart F. Myers
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Bruno Martins
- Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI 48824, USA
| | - John M. Skinner
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Jun Aishima
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Kun Qian
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Herbert J. Bernstein
- Ronin Institute for Independent Scholarship, c/o NSLS-II, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Edwin O. Lazo
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Thomas Langdon
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - John Lara
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | | | - Mourad Idir
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Lei Huang
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Oleg Chubar
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Robert M. Sweet
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Lonny E. Berman
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Sean McSweeney
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Martin R. Fuchs
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
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13
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Martins B, Sorrentino S, Chung WL, Tatli M, Medalia O, Eibauer M. Unveiling the polarity of actin filaments by cryo-electron tomography. Structure 2021; 29:488-498.e4. [PMID: 33476550 PMCID: PMC8111420 DOI: 10.1016/j.str.2020.12.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 12/04/2020] [Accepted: 12/23/2020] [Indexed: 01/01/2023]
Abstract
The actin cytoskeleton plays a fundamental role in numerous cellular processes, such as cell motility, cytokinesis, and adhesion to the extracellular matrix. Revealing the polarity of individual actin filaments in intact cells would foster an unprecedented understanding of cytoskeletal processes and their associated mechanical forces. Cryo-electron tomography provides the means for high-resolution structural imaging of cells. However, the low signal-to-noise ratio of cryo-tomograms obscures the high frequencies, and therefore the polarity of actin filaments cannot be directly measured. Here, we developed a method that enables us to determine the polarity of actin filaments in cellular cryo-tomograms. We applied it to reveal the actin polarity distribution in focal adhesions, and show a linear relation between actin polarity and distance from the apical boundary of the adhesion site. Determining the polarity of individual actin filaments inside cells Reconstruction of actin networks from cryo-tomograms The polarity of actin changes from mixed to uniform along focal adhesions
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Affiliation(s)
- Bruno Martins
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Simona Sorrentino
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Wen-Lu Chung
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Meltem Tatli
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Ohad Medalia
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.
| | - Matthias Eibauer
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.
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14
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Gavala-González J, Martins B, Ponseti FJ, Garcia-Mas A. Studying Well and Performing Well: A Bayesian Analysis on Team and Individual Rowing Performance in Dual Career Athletes. Front Psychol 2021; 11:583409. [PMID: 33424696 PMCID: PMC7786305 DOI: 10.3389/fpsyg.2020.583409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 12/03/2020] [Indexed: 11/13/2022] Open
Abstract
On many occasions, the maximum result of a team does not equate to the total maximum individual effort of each athlete (social loafing). Athletes often combine their sports life with an academic one (Dual Career), prioritizing one over the over in a difficult balancing act. The aim of this research is to examine the existence of social loafing in a group of novice university rowers and the differences that exist according to sex, academic performance, and the kind of sport previously practiced (individual or team). Therefore, a study was conducted from a probabilistic perspective using the Bayesian Network analysis methodology. The results confirm the existence of the Ringelmann effect or social loafing. The Bayesian analysis let us confirm that having a good student who practices a team sport, even in the individual rowing concept, increases the probability of obtaining greater performance (higher number of strokes and more power in each one). Therefore, when rowing partnerships are formed, the occurrence probability chain is quickly simplified, along with values of the top and bottom variables. Finally, the instantiations undertaken on the bottom variable that appears to be common in the two BNs, the watt input, enhance the results obtained. In short, rowers who have a better academic record are more involved in team testing, so this characteristic is defining when it comes to achieving better performance in team testing.
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Affiliation(s)
| | - Bruno Martins
- Research Group of Physical Activity and Sports, University of Balearic Islands, Palma de Mallorca, Spain
| | - Francisco Javier Ponseti
- Research Group of Physical Activity and Sports, University of Balearic Islands, Palma de Mallorca, Spain
| | - Alexandre Garcia-Mas
- Research Group of Physical Activity and Sports, University of Balearic Islands, Palma de Mallorca, Spain
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15
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Pombo AA, Lenz L, Paulo GA, Santos MA, Tamae PK, Santos AL, Rezende DT, Martins B, Kawaguti FS, Pennachi CM, Gusmon-Oliveira CC, Uemura RS, Geiger S, Lima MS, Baba ER, Figueiredo VR, Safatle-Ribeiro A, Maluf-Filho F, Ribeiro-Júnior U. Endoscopy infection control strategy during the COVID-19 pandemic: experience from a tertiary cancer center in Brazil. Clinics (Sao Paulo) 2021; 76:e2280. [PMID: 33681942 PMCID: PMC7920396 DOI: 10.6061/clinics/2021/e2280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 12/29/2020] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVES Strategic planning for coronavirus disease (COVID-19) care has dominated the agenda of medical services, which have been further restricted by the need for minimizing viral transmission. Risk is particularly relevant in relation to endoscopy procedures. This study aimed to describe a contingency plan for a tertiary academic cancer center, define a strategy to prioritize and postpone examinations, and evaluate the infection rate among healthcare workers (HCWs) in the endoscopy unit of the Cancer Institute of the State of São Paulo (ICESP). METHODS We created a strategy to balance the risk of acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and to mitigate the effects of postponing endoscopic procedures in oncological patients. A retrospective analysis of prospectively collected data on all endoscopies between March and June 2020 compared with those during the same period in 2019 was carried out. All HCWs were interviewed to obtain clinical data and SARS-CoV-2 test results. RESULTS During the COVID-19 outbreak, there was a reduction of 55% in endoscopy cases in total. Colonoscopy was the most affected modality. The total infection rate among all HCWs was 38%. None of the senior digestive endoscopists had COVID-19. However, all bronchoscopists had been infected. One of three fellows had a serological diagnosis of COVID-19. Two-thirds of all nurses were infected, whereas half of all technicians were infected. CONCLUSIONS In this pandemic scenario, all endoscopy services must prioritize the procedures that will be performed. It was possible to maintain some endoscopic procedures, including those meant to provide nutritional access, tissue diagnosis, and endoscopic resection. Personal protective equipment (PPE) seems effective in preventing transmission of COVID-19 from patients to digestive endoscopists. These measures can be useful in planning, even for pandemics in the future.
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Affiliation(s)
- Amanda A.M. Pombo
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Luciano Lenz
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Gustavo A. Paulo
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Mônica A. Santos
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Patricia K. Tamae
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Alisson L.D.R. Santos
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Daniel T. Rezende
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Bruno Martins
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Fabio S. Kawaguti
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Caterina M.P.S. Pennachi
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Carla C. Gusmon-Oliveira
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Ricardo S. Uemura
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Sebastian Geiger
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Marcelo S. Lima
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Elisa R. Baba
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Viviane R. Figueiredo
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Adriana Safatle-Ribeiro
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
- *Corresponding author. E-mail:
| | - Fauze Maluf-Filho
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
| | - Ulysses Ribeiro-Júnior
- Unidade de Endoscopia, Departamento de Gastroenterologia, Instituto do Cancer (ICESP), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, BR
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16
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Boujemaa-Paterski R, Martins B, Eibauer M, Beales CT, Geiger B, Medalia O. Talin-activated vinculin interacts with branched actin networks to initiate bundles. eLife 2020; 9:e53990. [PMID: 33185186 PMCID: PMC7682986 DOI: 10.7554/elife.53990] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 11/12/2020] [Indexed: 12/18/2022] Open
Abstract
Vinculin plays a fundamental role in integrin-mediated cell adhesion. Activated by talin, it interacts with diverse adhesome components, enabling mechanical coupling between the actin cytoskeleton and the extracellular matrix. Here we studied the interactions of activated full-length vinculin with actin and the way it regulates the organization and dynamics of the Arp2/3 complex-mediated branched actin network. Through a combination of surface patterning and light microscopy experiments we show that vinculin can bundle dendritic actin networks through rapid binding and filament crosslinking. We show that vinculin promotes stable but flexible actin bundles having a mixed-polarity organization, as confirmed by cryo-electron tomography. Adhesion-like synthetic design of vinculin activation by surface-bound talin revealed that clustered vinculin can initiate and immobilize bundles from mobile Arp2/3-branched networks. Our results provide a molecular basis for coordinate actin bundle formation at nascent adhesions.
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Affiliation(s)
- Rajaa Boujemaa-Paterski
- Department of Biochemistry, University of ZurichZurichSwitzerland
- Université Grenoble AlpesGrenobleFrance
| | - Bruno Martins
- Department of Biochemistry, University of ZurichZurichSwitzerland
| | - Matthias Eibauer
- Department of Biochemistry, University of ZurichZurichSwitzerland
| | - Charlie T Beales
- Department of Biochemistry, University of ZurichZurichSwitzerland
| | - Benjamin Geiger
- Department of Immunology, Weizmann Institute of ScienceRehovotIsrael
| | - Ohad Medalia
- Department of Biochemistry, University of ZurichZurichSwitzerland
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17
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Lenz L, Martins B, Kawaguti FS, Tellian A, Pennachi CMPS, Sorbello M, Gusmon C, Paulo GAD, Uemura R, Geiger S, Lima MSD, Safatle-Ribeiro A, Baba E, Hashimoto CL, Maluf-Filho F, Ribeiro U. UNDERWATER ENDOSCOPIC MUCOSAL RESECTION FOR NON-PEDUNCULATED COLORECTAL LESIONS. A PROSPECTIVE SINGLE-ARM STUDY. Arq Gastroenterol 2020; 57:193-197. [PMID: 32609162 DOI: 10.1590/s0004-2803.202000000-37] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/27/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Underwater endoscopic mucosal resection (UEMR) has emerged as a revolutionary method allowing resection of colorectal lesions without submucosal injection. Brazilian literature about this technique is sparse. OBJECTIVE The aim of this study was evaluate the efficacy and safety of UEMR technique for removing non-pedunculated colorectal lesions in two Brazilian tertiary centers. METHODS This prospective study was conducted between June 2016 and May 2017. Naïve and non-pedunculated lesions without signs of submucosal invasion were resected using UEMR technique. RESULTS A total of 55 patients with 65 lesions were included. All lesions, except one, were successfully and completely removed by UEMR (success rate 98.5%). During UEMR, two cases of bleeding were observed (3.0%). One patient had abdominal pain on the day after resection without pneumoperitoneum. There was no perforation or delayed bleeding. CONCLUSION This study supports the existing data indicating acceptable rates of technical success, and low incidence of adverse events with UEMR. The results of this Brazilian study were consistent with previous abroad studies.
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Affiliation(s)
- Luciano Lenz
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil.,Fleury Medicina e Saúde, São Paulo, SP, Brasil
| | - Bruno Martins
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil.,Fleury Medicina e Saúde, São Paulo, SP, Brasil
| | - Fabio Shiguehisa Kawaguti
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil.,Fleury Medicina e Saúde, São Paulo, SP, Brasil
| | - Alexandre Tellian
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Divisão de Gastroenterologia e Hepatologia Clínica, Centro de Diagnóstico em Gastroenterologia, São Paulo, SP, Brasil
| | - Caterina Maria Pia Simoni Pennachi
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil
| | - Mauricio Sorbello
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil.,Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Divisão de Gastroenterologia e Hepatologia Clínica, Centro de Diagnóstico em Gastroenterologia, São Paulo, SP, Brasil
| | - Carla Gusmon
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil
| | - Gustavo Andrade de Paulo
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil.,Hospital Israelita Albert Einstein, Serviço de Endoscopia, São Paulo, SP, Brasil
| | - Ricardo Uemura
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil
| | - Sebastian Geiger
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil
| | - Marcelo Simas de Lima
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil
| | - Adriana Safatle-Ribeiro
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil.,Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Divisão de Gastroenterologia e Hepatologia Clínica, Centro de Diagnóstico em Gastroenterologia, São Paulo, SP, Brasil.,Hospital Sírio-Libanês, São Paulo, SP, Brasil
| | - Elisa Baba
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil
| | - Claudio Lyoiti Hashimoto
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Divisão de Gastroenterologia e Hepatologia Clínica, Centro de Diagnóstico em Gastroenterologia, São Paulo, SP, Brasil.,Hospital Sírio-Libanês, São Paulo, SP, Brasil
| | - Fauze Maluf-Filho
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil
| | - Ulysses Ribeiro
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Gastroenterologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP, Brasil
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Martins B, Rodrigues T, Ramalho J, Ambrósio A, Girão H, Fernandes R. Inflammation disrupts epithelial barrier function and induces the release of different populations of exosomes. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa040.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction Age-related macular degeneration (AMD) is a degenerative retinal disease that affects central vision. Most of their phenotypical features are believed to be associated with the dysfunction of retinal pigment epithelium (RPE). The accumulation of damaged proteins in aged RPE is associated with disruption of proteolytic pathways and exocytic activity, with release of intracellular proteins via exosomes (Exo), that are important players in intercellular communication and can contribute to disease progression. However, the impact of their secretion by polarized RPE on outer blood retinal barrier (oBRB) breakdown remains largely elusive
Objectives Our aim was to explore the role of inflammation on the loss of RPE integrity and to understand the relative role of directional secretion of Exo by RPE in the loss of polarity and barrier disruption
Methodology We used a human RPE cell line (ARPE-19), highly polarized RPE primary cultures (pRPE) and porcine eyecups. To mimic the inflammatory conditions present in AMD, cells were treated with two inflammatory stimuli, TNF (10 ng/mL) or LPS (100 ng/mL)
Results TNF and LPS do not affect the viability of the RPE cells. RPE cells developed a confluent monolayer and reached a relatively constant TER of about 40 Ω/cm2 (ARPE-19) or higher than 150 Ω/cm2 (pRPE). Treatment with TNF significantly reduces the TER, decreased immunoreactivity and co-localization of the TJ proteins ZO-1 and occludin and increases MMP-2/-9 activity in the medium. Apical Exo isolated from the RPE cells are enriched in CD63 compared to the basolateral Exo, that are enriched in CD81. The Exo isolated from porcine eyecups, especially with the LPS stimulus, are enriched in CD81 and MMP-2 but have similar levels of CD63
Conclusion Overall, our results show that inflammation induces loss of RPE integrity and release of different populations of Exo. The unravelling of novel drug targets paves the way for development of new therapeutic strategies for AMD.
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Affiliation(s)
- B Martins
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra (FMUC), Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal
| | - T Rodrigues
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra (FMUC), Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal
| | - J Ramalho
- Centro de Estudos de Doenças Crónicas (CEDOC) and NOVA Medical School, Faculdade de Ciências Médicas (NMS/FCM), Portugal
| | - A Ambrósio
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra (FMUC), Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal
| | - H Girão
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra (FMUC), Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal
| | - R Fernandes
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra (FMUC), Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal
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Ellis RP, Hsu HE, Song C, Kuo TC, Martins B, Siracuse JJ, Liu Y, Ash AS. Diagnostic Category Prevalence in 3 Classification Systems Across the Transition to the International Classification of Diseases, Tenth Revision, Clinical Modification. JAMA Netw Open 2020; 3:e202280. [PMID: 32267514 PMCID: PMC7142382 DOI: 10.1001/jamanetworkopen.2020.2280] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Importance On October 1, 2015, the US transitioned to the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) for recording diagnoses, symptoms, and procedures. It is unknown whether this transition was associated with changes in diagnostic category prevalence based on diagnosis classification systems commonly used for payment and quality reporting. Objective To assess changes in diagnostic category prevalence associated with the ICD-10-CM transition. Design, Setting, and Participants This interrupted time series analysis and cross-sectional study examined level and trend changes in diagnostic category prevalence associated with the ICD-10-CM transition and clinically reviewed a subset of diagnostic categories with changes of 20% or more. Data included insurance claim diagnoses from the IBM MarketScan Commercial Database from January 1, 2010, to December 31, 2017, for more than 18 million people aged 0 to 64 years with private insurance. Diagnoses were mapped using 3 common diagnostic classification systems: World Health Organization (WHO) disease chapters, Department of Health and Human Services Hierarchical Condition Categories (HHS-HCCs), and Agency for Healthcare Research and Quality Clinical Classification System (AHRQ-CCS). Data were analyzed from December 1, 2018, to January 21, 2020. Exposures US implementation of ICD-10-CM. Main Outcomes and Measures Monthly rates of individuals with at least 1 diagnosis in a diagnostic classification category per 10 000 eligible members. Results The analytic sample contained information on 2.1 billion enrollee person-months with 3.4 billion clinically assigned diagnoses; the mean (range) monthly sample size was 22.1 (18.4 to 27.1 ) million individuals. While diagnostic category prevalence changed minimally for WHO disease chapters, the ICD-10-CM transition was associated with level changes of 20% or more among 20 of 127 HHS-HCCs (15.7%) and 46 of 282 AHRQ-CCS categories (16.3%) and with trend changes of 20% or more among 12 of 127 of HHS-HCCs (9.4%) and 27 of 282 of AHRQ-CCS categories (9.6%). For HHS-HCCs, monthly rates of individuals with any acute myocardial infarction diagnosis increased 131.5% (95% CI, 124.1% to 138.8%), primarily because HHS added non-ST-segment-elevation myocardial infarction diagnoses to this category. The HHS-HCC for diabetes with chronic complications increased by 92.4% (95% CI, 84.2% to 100.5%), primarily from including new diabetes-related hypoglycemia and hyperglycemia codes, and the rate for completed pregnancy with complications decreased by 54.5% (95% CI, -58.7% to -50.2%) partly due to removing vaginal birth after cesarean delivery as a complication. Conclusions and Relevance These findings suggest that the ICD-10-CM transition was associated with large prevalence changes for many diagnostic categories. Diagnostic classification systems developed using ICD-9-CM may need to be refined using ICD-10-CM data to avoid unintended consequences for disease surveillance, performance assessment, and risk-adjusted payments.
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Affiliation(s)
- Randall P Ellis
- Department of Economics, Boston University, Boston, Massachusetts
| | - Heather E Hsu
- Department of Pediatrics, Boston University School of Medicine, Boston, Massachusetts
| | - Chenlu Song
- Department of Economics, Boston University, Boston, Massachusetts
| | | | | | - Jeffrey J Siracuse
- Division of Vascular and Endovascular Surgery, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
| | - Ying Liu
- Department of Economics, Boston University, Boston, Massachusetts
| | - Arlene S Ash
- Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester
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20
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Ebling R, Martins B, Jardim JC, Flores MM, Diel DG, Weiblen R, Flores EF. Late development of pustular, erosive lesions in the muzzle of calves inoculated with Pseudocowpox virus. Microb Pathog 2020; 143:104122. [PMID: 32169495 DOI: 10.1016/j.micpath.2020.104122] [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: 10/17/2019] [Revised: 02/21/2020] [Accepted: 03/06/2020] [Indexed: 10/24/2022]
Abstract
We studied the pathogenesis of Pseudocowpox virus (PCPV), a zoonotic parapoxvirus associated with mucocutaneous lesions in cattle. Inoculation of calves with PCPV isolate SD 76-65 intranasally (n = 6) or transdermally in the muzzle (n = 2) resulted in virus replication and shedding up to day 13 post-infection (pi). No local or systemic signs were observed in inoculated calves up to day 20pi, when the clinical monitoring was discontinued. However, from days 28-34 pi, seven (7/8) inoculated calves underwent an asynchronous clinical course characterized by development of a few (one or two) to countless papulo-pustular, erosive-fibrinous and scabby lesions in the muzzle, in some cases extending to the lips and gingiva. In some animals, the lesions coalesced, forming extensive fibrinotic/necrotic and scabby plaques covering almost entirely the muzzle. The clinical course lasted 8-15 days and spontaneously subsided after day 42pi. Infectious virus and/or viral DNA were detected in swabs collected from lesions of 5/8 animals between days 34 and 42pi. Histological examination of fragments collected from the muzzle lesions of two affected calves (day 36pi) revealed marked epidermal hyperplasia and severe orthokeratotic and parakeratotic hyperkeratosis, covered by thick scabs. The epidermis showed multifocal areas of keratinocyte coalescing necrosis and mild multifocal vacuolar degeneration. Sera of inoculated calves at 50pi showed partial virus neutralization at low dilutions, demonstrating seroconversion. The delayed and severe clinical course associated with virus persistence in lesions are novel findings and contribute for the understanding of PCPV pathogenesis.
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Affiliation(s)
- R Ebling
- Virology Section, Department of Preventive Veterinary Medicine, Federal University of Santa Maria, RS, Brazil; Programa de Pós-graduação Em Medicina Veterinária, UFSM, Brazil
| | - B Martins
- Virology Section, Department of Preventive Veterinary Medicine, Federal University of Santa Maria, RS, Brazil; Programa de Pós-graduação Em Medicina Veterinária, UFSM, Brazil
| | - J C Jardim
- Virology Section, Department of Preventive Veterinary Medicine, Federal University of Santa Maria, RS, Brazil
| | - M M Flores
- Veterinary Pathology Laboratory, Federal University of Santa Maria, Brazil
| | - D G Diel
- Department of Population Medicine and Diagnostic Sciences, Animal Health Diagnostic Center, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - R Weiblen
- Virology Section, Department of Preventive Veterinary Medicine, Federal University of Santa Maria, RS, Brazil
| | - E F Flores
- Virology Section, Department of Preventive Veterinary Medicine, Federal University of Santa Maria, RS, Brazil.
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21
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Martins B, Filipe L. Doctors' response to queues: Evidence from a Portuguese emergency department. Health Econ 2020; 29:123-137. [PMID: 31797467 DOI: 10.1002/hec.3957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/30/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
We evaluate how doctors in an emergency department react to the number of patients waiting for treatment. Our outcomes reflect the time spent with the patient, the intensity of treatment, and discharge destination. Using visit-level data in a Lisbon-area hospital, we use a fixed effects model to exploit variation in the queue size while addressing endogeneity using the number of arrivals to the hospital in the previous 60 min as an instrumental variable. Furthermore, we estimate doctors' reactions separately for patients with different degrees of urgency, as measured by the Manchester triage system. Results show that doctors discharge patients more rapidly as queues become longer, and this effect is stronger for patients that do not have life-threatening conditions. We also find that the intensity of diagnosis/treatment procedures decreases when patients face longer queues, driven by the extensive margin. Finally, doctors are less likely to admit patients to inpatient care. We interpret the results in the light of the doctors' incentives literature, explaining how these agents behave in the context of a National Health Service, with no financial incentives.
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Affiliation(s)
- Bruno Martins
- Department of Economics, Boston University, Boston, Massachusetts
| | - Luís Filipe
- Nova School of Business and Economics, Universidade Nova de Lisboa, Lisbon, Portugal
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22
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Keating S, Sage A, Ambrisko T, Somrak A, Carroll M, Oba P, Martins B, Swanson K. The effect of midazolam or lidocaine prior to etomidate induction on cardiorespiratory function, intraocular pressure, and cortisol production in healthy dogs. Vet Anaesth Analg 2019. [DOI: 10.1016/j.vaa.2019.08.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Ponseti FJ, Almeida PL, Lameiras J, Martins B, Olmedilla A, López-Walle J, Reyes O, Garcia-Mas A. Self-Determined Motivation and Competitive Anxiety in Athletes/Students: A Probabilistic Study Using Bayesian Networks. Front Psychol 2019; 10:1947. [PMID: 31555166 PMCID: PMC6742710 DOI: 10.3389/fpsyg.2019.01947] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 08/08/2019] [Indexed: 11/13/2022] Open
Abstract
This study attempts to analyze the relationship between two key psychological variables associated with performance in sports - Self-Determined Motivation and Competitive Anxiety - through Bayesian Networks (BN) analysis. We analyzed 674 university students that are athletes from 44 universities that competed at the University Games in Mexico, with an average age of 21 years (SD = 2.07) and with a mean of 8.61 years' (SD = 5.15) experience in sports. Methods: Regarding the data analysis, firstly, classification using the CHAID algorithm was carried out to determine the dependence links between variables; Secondly, a BN was developed to reduce the uncertainty in the relationships between the two key psychological variables. The validation of the BN revealed AUC values ranging from 0.5 to 0.92. Subsequently, various instantiations were performed with hypothetical values applied to the "bottom" variables. Results showed two probability trees that have extrinsic motivation and amotivation at the top, while the anxiety/activation due to worries about performance was at the bottom of the probabilities. The instantiations carried out support the existence of these probabilistic relationships, demonstrating their scarce influence on anxiety about competition generated by the intrinsic motivation, and the complex probabilistic effect of introjected and identified regulation regarding the appearance of anxiety due to worry about performance.
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Affiliation(s)
| | - Pedro L. Almeida
- Departamento de Psicologia Social e Organizacional, ISPA – Instituto Universitario, Lisbon, Portugal
| | | | - Bruno Martins
- GICAFE de la UIB, University of Lisbon, Lisbon, Portugal
| | - Aurelio Olmedilla
- Departamento de Personalidad, Evaluación y Tratamiento Psicológicos, University of Murcia, Murcia, Spain
| | - Jeanette López-Walle
- Facultad de Organización Deportiva, Universidad Autónoma de Nuevo León, Nuevo León, Mexico
| | - Orlando Reyes
- Facultad de Organización Deportiva, Universidad Autónoma de Nuevo León, Nuevo León, Mexico
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Martins B, Ebling RC, Martins M, Diel DG, Weiblen R, Flores EF. Antigenic relationships between Caprine alphaherpesvirus 1 (CpHV-1) and Bovine alphaherpesvirus 1 (BoHV-1) and experimental CpHV-1 infection of kids and calves. Microb Pathog 2019; 136:103663. [PMID: 31404631 DOI: 10.1016/j.micpath.2019.103663] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 06/18/2019] [Revised: 07/19/2019] [Accepted: 08/09/2019] [Indexed: 11/25/2022]
Abstract
Caprine alphaherpesvirus 1 (CpHV-1) is a worldwide pathogen of goats and is closely related to Bovine alphaherpevirus 1 (BoHV-1). We herein studied the antigenic relationships of CpHV-1 with BoHV-1 and investigated the pathogenesis of CpHV-1 in kids and calves. Monoclonal antibody reactivity revealed that CpHV-1 and BoHV-1 share immunogenic epitopes in the major envelope glycoproteins gB, gC and gD. The antigenic relationship was further demonstrated by virus-neutralizing assays, in which CpHV-1 and BoHV-1 antisera presented varied degrees of cross-neutralization against the respective heterologous viruses. Although cross-neutralization was observed between both viruses and the heterologous antisera, BoHV-1 antisera neutralized CpHV-1 with higher efficiency than CpHV-1 antisera neutralized BoHV-1. Hence, the antigenic cross-reactivity between CpHV-1 and BoHV-1 should be considered upon serologic testing of goats and cattle in regions where the two viruses co-circulate. Intranasal (IN) inoculation of CpHV-1 (WI13-46 isolate) in seven seronegative kids resulted in efficient viral replication in the respiratory tract. Additionally, mild to moderate systemic and respiratory signs were observed, including apathy, hyperthermia, nasal discharge and respiratory distress. Dexamethasone administration to the inoculated kids between days 36 and 40 pi did not result in virus shedding in nasal secretions. However, latent infection had been established, as evidenced by the detection of CpHV-1 DNA in trigeminal ganglia and olfactory bulbs of kids euthanized at day 67 pi. Contrasting with the outcome of infection in kids, IN inoculation of CpHV-1 in calves did not result in productive infection as no virus replication or shedding were detected, and the animals did not develop clinical signs nor seroconverted. The animal experiments demonstrated that CpHV-1 was able to produce respiratory disease in kids, but did not replicate to detectable levels in calves.
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Affiliation(s)
- Bruno Martins
- Setor de Virologia (SV), Departamento de Medicina Veterinária Preventiva (DMVP), Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, 97105-900, Brazil
| | - Rafael C Ebling
- Setor de Virologia (SV), Departamento de Medicina Veterinária Preventiva (DMVP), Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, 97105-900, Brazil
| | - Mathias Martins
- Laboratório de Virologia, Universidade do Oeste de Santa Catarina (UNOESC), Xanxere, SC, 89820-000, Brazil
| | - Diego G Diel
- Animal Disease Research and Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, South Dakota State University (SDSU), Brookings, SD, 57007, USA; South Dakota Center for Biologics Research and Commercialization (SD-CBRC), South Dakota State University (SDSU), Brookings, SD, 57007, USA
| | - Rudi Weiblen
- Setor de Virologia (SV), Departamento de Medicina Veterinária Preventiva (DMVP), Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, 97105-900, Brazil
| | - Eduardo F Flores
- Setor de Virologia (SV), Departamento de Medicina Veterinária Preventiva (DMVP), Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, 97105-900, Brazil.
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Borges L, Martins B, Calado P. Combining Similarity Features and Deep Representation Learning for Stance Detection in the Context of Checking Fake News. J Data and Information Quality 2019. [DOI: 10.1145/3287763] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Fake news is nowadays an issue of pressing concern, given its recent rise as a potential threat to high-quality journalism and well-informed public discourse. The Fake News Challenge (FNC-1) was organized in early 2017 to encourage the development of machine-learning-based classification systems for stance detection (i.e., for identifying whether a particular news article agrees, disagrees, discusses, or is unrelated to a particular news headline), thus helping in the detection and analysis of possible instances of fake news. This article presents a novel approach to tackle this stance detection problem, based on the combination of string similarity features with a deep neural network architecture that leverages ideas previously advanced in the context of learning-efficient text representations, document classification, and natural language inference. Specifically, we use bi-directional Recurrent Neural Networks (RNNs), together with max-pooling over the temporal/sequential dimension and neural attention, for representing (i) the headline, (ii) the first two sentences of the news article, and (iii) the entire news article. These representations are then combined/compared, complemented with similarity features inspired on other FNC-1 approaches, and passed to a final layer that predicts the stance of the article toward the headline. We also explore the use of external sources of information, specifically large datasets of sentence pairs originally proposed for training and evaluating natural language inference methods to pre-train specific components of the neural network architecture (e.g., the RNNs used for encoding sentences). The obtained results attest to the effectiveness of the proposed ideas and show that our model, particularly when considering pre-training and the combination of neural representations together with similarity features, slightly outperforms the previous state of the art.
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Affiliation(s)
- Luís Borges
- INESC-ID, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Bruno Martins
- INESC-ID, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Pável Calado
- INESC-ID, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
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Monteiro FL, Martins B, Cargnelutti JF, Noll JG, Weiblen R, Flores EF. Genetic identification of pestiviruses from beef cattle in Southern Brazil. Braz J Microbiol 2019; 50:557-563. [PMID: 30877664 DOI: 10.1007/s42770-019-00058-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 01/09/2019] [Indexed: 11/26/2022] Open
Abstract
Bovine pestiviruses, e.g., bovine viral diarrhea virus types 1 (BVDV-1 or Pestivirus A), BVDV-2 (Pestivirus B), and HoBi-like pestiviruses (HoBiPeV or Pestivirus H), have been shown to circulate in Brazilian cattle in varied proportions. In this study, we identified genetically pestiviruses circulating in beef cattle in Rio Grande do Sul, the southern most Brazilian state. Screening of serum of 15.584 beef calves destined to be export by an antigen capture ELISA and, subsequently, by reverse-transcription polymerase chain reaction (RT-PCR), revealed 135 containing pestivirus RNA. Genetic typing of these viruses based on nucleotide sequencing and phylogenetic analysis of the 5' untranslated region (5' UTR) of the viral genome allowed for the identification of 90 different viruses, being 38 BVDV-1 (42.2%), 31 BVDV-2 (34.4%), and 21 HoBiPeV (23.4%). Among BVDV-1, only subtypes BVDV-1a (n = 28, 31.1%) and BVDV-1b (n = 10, 11.1%) were identified. All 31 BVDV-2 isolates belonged to BVDV-2b subtype and the 21 HoBiPeV viruses clustered to subgroup 3a. Thus, this study provides an approximate genetic profile of pestiviruses circulating in beef cattle in a traditional Brazilian beef cattle-raising state.
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Affiliation(s)
- Francielle Liz Monteiro
- Departamento de Medicina Veterinária Preventiva (DMVP), Setor de Virologia (SV), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, prédio 63A, Centro de Eventos, Santa Maria, RS, 97105-900, Brazil
| | - Bruno Martins
- Departamento de Medicina Veterinária Preventiva (DMVP), Setor de Virologia (SV), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, prédio 63A, Centro de Eventos, Santa Maria, RS, 97105-900, Brazil
| | - Juliana F Cargnelutti
- Departamento de Medicina Veterinária Preventiva (DMVP), Setor de Virologia (SV), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, prédio 63A, Centro de Eventos, Santa Maria, RS, 97105-900, Brazil
| | - Jessica G Noll
- Departamento de Medicina Veterinária Preventiva (DMVP), Setor de Virologia (SV), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, prédio 63A, Centro de Eventos, Santa Maria, RS, 97105-900, Brazil
| | - Rudi Weiblen
- Departamento de Medicina Veterinária Preventiva (DMVP), Setor de Virologia (SV), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, prédio 63A, Centro de Eventos, Santa Maria, RS, 97105-900, Brazil
| | - Eduardo F Flores
- Departamento de Medicina Veterinária Preventiva (DMVP), Setor de Virologia (SV), Universidade Federal de Santa Maria (UFSM), Avenida Roraima, 1000, prédio 63A, Centro de Eventos, Santa Maria, RS, 97105-900, Brazil.
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27
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Monteiro FL, Cargnelutti JF, Martins B, Noll JG, Weiblen R, Flores EF. Detection of bovine pestiviruses in sera of beef calves by a RT-PCR based on a newly designed set of pan-bovine pestivirus primers. J Vet Diagn Invest 2019; 31:255-258. [PMID: 30698509 DOI: 10.1177/1040638719826299] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The pestiviruses bovine viral diarrhea virus 1 and 2 (BVDV-1 and -2, respectively) and HoBi-like pestivirus (HoBiPeV) are important pathogens of cattle, and a number of reverse-transcription PCR (RT-PCR)-based assays have been developed for their detection in clinical specimens. We evaluated a newly designed set of pan-bovine pestivirus primers (BP189-389) in a gel-based RT-PCR screening test for pestiviruses in the sera of beef calves destined for export from southern Brazil. Serum samples positive for BVDV antigens by an antigen ELISA ( n = 135) were submitted to RT-PCR assays using different sets of primers, followed by nucleotide sequencing of the amplicons. RT-PCR with pestivirus primers 324-326 detected 110 positive samples: BVDV-1 ( n = 62), BVDV-2 ( n = 38), and HoBiPeV ( n = 10). A PCR using primers HCV90-368 detected 97 positive samples (64 BVDV-1; 33 BVDV-2). An additional RT-PCR round using BVDV-2-specific primers (2F-2R) detected 45 positive samples (including 38 detected by primers 324-326 and 33 by HCV90-368); whereas a RT-PCR using HoBiPeV-specific primers (N2-R5) detected 26 positive samples (including 10 detected by primers 324-326).The assay using the primers BP189-389 detected all 135 ELISA-positive samples, including the 26 HoBiPeV detected by primers N2-R5. Our results demonstrated that primers BP189-389 compare favorably against other primer sets in the detection of bovine pestiviruses, especially HoBiPeV. This conventional PCR may be useful for efficient detection of pestiviruses in bovine sera and other specimens as well, especially in laboratories without real-time PCR equipment.
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Affiliation(s)
- Francielle Liz Monteiro
- Setor de Virologia, Departamento de Medicina Veterinária Preventiva (Monteiro, Cargnelutti, Martins, Noll, Weiblen, Flores), Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.,Programa de Pós-Graduação em Medicina Veterinária (Monteiro, Martins, Noll, Weiblen, Flores), Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Juliana F Cargnelutti
- Setor de Virologia, Departamento de Medicina Veterinária Preventiva (Monteiro, Cargnelutti, Martins, Noll, Weiblen, Flores), Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.,Programa de Pós-Graduação em Medicina Veterinária (Monteiro, Martins, Noll, Weiblen, Flores), Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Bruno Martins
- Setor de Virologia, Departamento de Medicina Veterinária Preventiva (Monteiro, Cargnelutti, Martins, Noll, Weiblen, Flores), Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.,Programa de Pós-Graduação em Medicina Veterinária (Monteiro, Martins, Noll, Weiblen, Flores), Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Jessica G Noll
- Setor de Virologia, Departamento de Medicina Veterinária Preventiva (Monteiro, Cargnelutti, Martins, Noll, Weiblen, Flores), Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.,Programa de Pós-Graduação em Medicina Veterinária (Monteiro, Martins, Noll, Weiblen, Flores), Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Rudi Weiblen
- Setor de Virologia, Departamento de Medicina Veterinária Preventiva (Monteiro, Cargnelutti, Martins, Noll, Weiblen, Flores), Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.,Programa de Pós-Graduação em Medicina Veterinária (Monteiro, Martins, Noll, Weiblen, Flores), Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Eduardo F Flores
- Setor de Virologia, Departamento de Medicina Veterinária Preventiva (Monteiro, Cargnelutti, Martins, Noll, Weiblen, Flores), Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.,Programa de Pós-Graduação em Medicina Veterinária (Monteiro, Martins, Noll, Weiblen, Flores), Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
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Dias M, Monteiro J, Estima J, Silva J, Martins B. Semantic Segmentation of High-Resolution Aerial Imagery with W-Net Models. Progress in Artificial Intelligence 2019. [DOI: 10.1007/978-3-030-30244-3_40] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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29
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Gao Y, Xu W, Shi W, Soares A, Jakoncic J, Myers S, Martins B, Skinner J, Liu Q, Bernstein H, McSweeney S, Nazaretski E, Fuchs MR. High-speed raster-scanning synchrotron serial microcrystallography with a high-precision piezo-scanner. J Synchrotron Radiat 2018; 25:1362-1370. [PMID: 30179174 PMCID: PMC6140394 DOI: 10.1107/s1600577518010354] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 07/18/2018] [Indexed: 05/06/2023]
Abstract
The Frontier Microfocus Macromolecular Crystallography (FMX) beamline at the National Synchrotron Light Source II with its 1 µm beam size and photon flux of 3 × 1012 photons s-1 at a photon energy of 12.66 keV has reached unprecedented dose rates for a structural biology beamline. The high dose rate presents a great advantage for serial microcrystallography in cutting measurement time from hours to minutes. To provide the instrumentation basis for such measurements at the full flux of the FMX beamline, a high-speed, high-precision goniometer based on a unique XYZ piezo positioner has been designed and constructed. The piezo-based goniometer is able to achieve sub-100 nm raster-scanning precision at over 10 grid-linepairs s-1 frequency for fly scans of a 200 µm-wide raster. The performance of the scanner in both laboratory and serial crystallography measurements up to the maximum frame rate of 750 Hz of the Eiger 16M's 4M region-of-interest mode has been verified in this work. This unprecedented experimental speed significantly reduces serial-crystallography data collection time at synchrotrons, allowing utilization of the full brightness of the emerging synchrotron radiation facilities.
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Affiliation(s)
- Yuan Gao
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Weihe Xu
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Wuxian Shi
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
- Case Center for Synchrotron Biosciences, Case Western Reserve University, OH 44106, USA
| | - Alexei Soares
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Jean Jakoncic
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Stuart Myers
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Bruno Martins
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - John Skinner
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Qun Liu
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Herbert Bernstein
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
- School of Chemistry and Materials Science, Rochester Institute of Technology, NY 14623, USA
| | - Sean McSweeney
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Evgeny Nazaretski
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Martin R. Fuchs
- Photon Sciences, Brookhaven National Laboratory, Upton, NY 11973, USA
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30
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Feola S, Capasso C, Fusciello M, Martins B, Tähtinen S, Medeot M, Carpi S, Frascaro F, Ylosmäki E, Peltonen K, Pastore L, Cerullo V. Oncolytic vaccines increase the response to PD-L1 blockade in immunogenic and poorly immunogenic tumors. Oncoimmunology 2018; 7:e1457596. [PMID: 30221051 DOI: 10.1080/2162402x.2018.1457596] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 03/16/2018] [Accepted: 03/22/2018] [Indexed: 12/31/2022] Open
Abstract
Activation of immune checkpoint pathways and limited T- cell infiltration result in immunological escape of tumors. Although immune checkpoint inhibitors are currently approved for several types of cancers, the response rate is often limited by the lack of tumor specific T-cells within the malignant tissue. Therefore, new combinatorial strategies are needed to enhance the clinical benefit of immune checkpoint inhibitors. We have previously developed PeptiCRAd, an oncolytic vaccine platform capable of directing the immune response toward tumor epitopes. In this study, we evaluated whether the platform could be used to increase the response rate to checkpoint inhibitors in both highly immunogenic and poorly immunogenic tumors, such as melanoma and triple negative breast cancer (TNBC). We report here that anti-PD-L1 therapy in combination with PeptiCRAd significantly reduced the growth of melanomas and increased the response rate to checkpoint inhibition. In fact, we registered a higher rate of complete responses among mice treated with the combination. This approach promoted the presence of non-exhausted antigen-specific T-cells within the tumor in comparison to anti-PD-L1 monotherapy. Furthermore, we found that targeting both MHC-I and II restricted tumor epitopes was necessary to decrease the growth of the poorly immunogenic TNBC model 4T1 and that combination with PD-L1 blockade increased the number of responders to checkpoint inhibition. Finally, the described strategy was validated in a translational in vitro model using HLA matched human PBMCs and tumor cell lines. Consistent to our previous results, improved cytotoxicity was observed with combination of PeptiCRAd and anti-PD-L1. These results demonstrate that oncolytic virus based cancer vaccine can significantly improve the response rate to checkpoint blocking antibodies in the context of immunogenic and non-immunogenic tumors.
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Affiliation(s)
- S Feola
- Dipartimento di medicina Molecolare e Biotecnologie Mediche, Universitá di Napoli Federico II, Via Pansini 5, Naples, Italy
| | - C Capasso
- Laboratory of Immunovirotherapy, Drug Research Doctoral Program, University of Helsinki, Helsinki, Finland
| | - M Fusciello
- Laboratory of Immunovirotherapy, Drug Research Doctoral Program, University of Helsinki, Helsinki, Finland
| | - B Martins
- Laboratory of Immunovirotherapy, Drug Research Doctoral Program, University of Helsinki, Helsinki, Finland
| | - S Tähtinen
- Laboratory of Immunovirotherapy, Drug Research Doctoral Program, University of Helsinki, Helsinki, Finland
| | - M Medeot
- Department of pharmaceutical and pharmacological sciences, University of Padova, Via F. Marzolo 5, Padova, Italy
| | - S Carpi
- Department of Pharmacy, University of Pisa, Lungarno Antonio Pacinotti, Pisa, Italy
| | - F Frascaro
- University of Siena, via Aldo Moro 2, Siena, Italy
| | - E Ylosmäki
- Laboratory of Immunovirotherapy, Drug Research Doctoral Program, University of Helsinki, Helsinki, Finland
| | - K Peltonen
- Laboratory of Immunovirotherapy, Drug Research Doctoral Program, University of Helsinki, Helsinki, Finland
| | - L Pastore
- Dipartimento di medicina Molecolare e Biotecnologie Mediche, Universitá di Napoli Federico II, Via Pansini 5, Naples, Italy.,Helsinki Institute of Life Science, HILIFE, University of Helsinki, Helsinki, Finland
| | - V Cerullo
- Laboratory of Immunovirotherapy, Drug Research Doctoral Program, University of Helsinki, Helsinki, Finland.,Helsinki Institute of Life Science, HILIFE, University of Helsinki, Helsinki, Finland.,CEINGE-Biotecnologie Avanzate, Naples, Italy
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Duarte F, Martins B, Pinto CS, Silva MJ. Deep neural models for ICD-10 coding of death certificates and autopsy reports in free-text. J Biomed Inform 2018; 80:64-77. [PMID: 29496630 DOI: 10.1016/j.jbi.2018.02.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [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: 09/18/2017] [Revised: 12/15/2017] [Accepted: 02/19/2018] [Indexed: 11/24/2022]
Abstract
We address the assignment of ICD-10 codes for causes of death by analyzing free-text descriptions in death certificates, together with the associated autopsy reports and clinical bulletins, from the Portuguese Ministry of Health. We leverage a deep neural network that combines word embeddings, recurrent units, and neural attention, for the generation of intermediate representations of the textual contents. The neural network also explores the hierarchical nature of the input data, by building representations from the sequences of words within individual fields, which are then combined according to the sequences of fields that compose the inputs. Moreover, we explore innovative mechanisms for initializing the weights of the final nodes of the network, leveraging co-occurrences between classes together with the hierarchical structure of ICD-10. Experimental results attest to the contribution of the different neural network components. Our best model achieves accuracy scores over 89%, 81%, and 76%, respectively for ICD-10 chapters, blocks, and full-codes. Through examples, we also show that our method can produce interpretable results, useful for public health surveillance.
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Affiliation(s)
- Francisco Duarte
- INESC-ID, Instituto Superior Técnico, Universidade de Lisboa, Portugal.
| | - Bruno Martins
- INESC-ID, Instituto Superior Técnico, Universidade de Lisboa, Portugal.
| | | | - Mário J Silva
- INESC-ID, Instituto Superior Técnico, Universidade de Lisboa, Portugal.
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32
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Capasso C, Whalley T, Marwah V, Serafin A, Fusciello M, Feola S, Martins B, Greco D, Szomolay B, Cerullo V. Homology between cancer and viral epitopes as criteria to design improved cancer vaccines. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx711.044] [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: 11/13/2022] Open
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33
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Ellis RP, Martins B, Zhu W. Demand elasticities and service selection incentives among competing private health plans. J Health Econ 2017; 56:352-367. [PMID: 29248060 DOI: 10.1016/j.jhealeco.2017.09.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 09/08/2017] [Accepted: 09/12/2017] [Indexed: 06/07/2023]
Abstract
We examine selection incentives by health plans while refining the selection index of McGuire et al. (2014) to reflect not only service predictability and predictiveness but also variation in cost sharing, risk-adjusted profits, profit margins, and newly-refined demand elasticities across 26 disaggregated types of service. We contrast selection incentives, measured by service selection elasticities, across six plan types using privately-insured claims data from 73 large employers from 2008 to 2014. Compared to flat capitation, concurrent risk adjustment reduces the elasticity by 47%, prospective risk adjustment by 43%, simple reinsurance system by 32%, and combined concurrent risk adjustment with reinsurance by 60%. Reinsurance significantly reduces the variability of individual-level profits, but increases the correlation of expected spending with profits, which strengthens selection incentives.
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Affiliation(s)
| | - Bruno Martins
- Boston University, Department of Economics, United States.
| | - Wenjia Zhu
- Harvard Medical School, Department of Health Care Policy, United States.
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34
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Ellis RP, Martins B, Zhu W. Health care demand elasticities by type of service. J Health Econ 2017; 55:232-243. [PMID: 28801131 PMCID: PMC5600717 DOI: 10.1016/j.jhealeco.2017.07.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 07/20/2017] [Accepted: 07/25/2017] [Indexed: 05/16/2023]
Abstract
We estimate within-year price elasticities of demand for detailed health care services using an instrumental variable strategy, in which individual monthly cost shares are instrumented by employer-year-plan-month average cost shares. A specification using backward myopic prices gives more plausible and stable results than using forward myopic prices. Using 171 million person-months spanning 73 employers from 2008 to 2014, we estimate that the overall demand elasticity by backward myopic consumers is -0.44, with higher elasticities of demand for pharmaceuticals (-0.44), specialists visits (-0.32), MRIs (-0.29) and mental health/substance abuse (-0.26), and lower elasticities for prevention visits (-0.02) and emergency rooms (-0.04). Demand response is lower for children, in larger firms, among hourly waged employees, and for sicker people. Overall the method appears promising for estimating elasticities for highly disaggregated services although the approach does not work well on services that are very expensive or persistent.
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Affiliation(s)
| | - Bruno Martins
- Boston University, Department of Economics, United States.
| | - Wenjia Zhu
- Harvard Medical School, Department of Health Care Policy, United States.
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35
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Costa N, Marques O, Godinho SI, Carvalho C, Leal B, Figueiredo AM, Vasconcelos C, Marinho A, Moraes-Fontes MF, Gomes da Costa A, Ponte C, Campanilho-Marques R, Cóias T, Martins AR, Viana JF, Lima M, Martins B, Fesel C. Two separate effects contribute to regulatory T cell defect in systemic lupus erythematosus patients and their unaffected relatives. Clin Exp Immunol 2017; 189:318-330. [PMID: 28542701 PMCID: PMC5543470 DOI: 10.1111/cei.12991] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2017] [Indexed: 12/13/2022] Open
Abstract
Forkhead box P3 (FoxP3)+ regulatory T cells (Tregs) are functionally deficient in systemic lupus erythematosus (SLE), characterized by reduced surface CD25 [the interleukin (IL)‐2 receptor alpha chain]. Low‐dose IL‐2 therapy is a promising current approach to correct this defect. To elucidate the origins of the SLE Treg phenotype, we studied its role through developmentally defined regulatory T cell (Treg) subsets in 45 SLE patients, 103 SLE‐unaffected first‐degree relatives and 61 unrelated healthy control subjects, and genetic association with the CD25‐encoding IL2RA locus. We identified two separate, uncorrelated effects contributing to Treg CD25. (1) SLE patients and unaffected relatives remarkably shared CD25 reduction versus controls, particularly in the developmentally earliest CD4+FoxP3+CD45RO–CD31+ recent thymic emigrant Tregs. This first component effect influenced the proportions of circulating CD4+FoxP3highCD45RO+ activated Tregs. (2) In contrast, patients and unaffected relatives differed sharply in their activated Treg CD25 state: while relatives as control subjects up‐regulated CD25 strongly in these cells during differentiation from naive Tregs, SLE patients specifically failed to do so. This CD25 up‐regulation depended upon IL2RA genetic variation and was related functionally to the proliferation of activated Tregs, but not to their circulating numbers. Both effects were found related to T cell IL‐2 production. Our results point to (1) a heritable, intrathymic mechanism responsible for reduced CD25 on early Tregs and decreased activation capacity in an extended risk population, which can be compensated by (2) functionally independent CD25 up‐regulation upon peripheral Treg activation that is selectively deficient in patients. We expect that Treg‐directed therapies can be monitored more effectively when taking this distinction into account.
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Affiliation(s)
- N Costa
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
| | - O Marques
- UMIB, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Portugal
| | - S I Godinho
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
| | - C Carvalho
- UMIB, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Portugal
| | - B Leal
- UMIB, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Portugal
| | - A M Figueiredo
- UMIB, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Portugal
| | - C Vasconcelos
- Hospital de Santo António, Centro Hospitalar do Porto, Unidade Imunologia Clínica, Porto, Portugal
| | - A Marinho
- Hospital de Santo António, Centro Hospitalar do Porto, Unidade Imunologia Clínica, Porto, Portugal
| | - M F Moraes-Fontes
- Instituto Gulbenkian de Ciência, Oeiras, Portugal.,Hospital de Curry Cabral, Centro Hospitalar de Lisboa Central, Unidade de Doenças Auto-imunes, Lisbon, Portugal
| | | | - C Ponte
- Hospital de Santa Maria, Lisbon, Portugal
| | - R Campanilho-Marques
- Hospital de Santa Maria, Lisbon, Portugal.,Instituto Português de Reumatologia, Lisbon, Portugal
| | - T Cóias
- Hospital de Santa Maria, Lisbon, Portugal
| | - A R Martins
- Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
| | - J F Viana
- Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
| | - M Lima
- Hospital de Santo António, Centro Hospitalar do Porto, Unidade Imunologia Clínica, Porto, Portugal
| | - B Martins
- UMIB, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Portugal
| | - C Fesel
- Instituto Gulbenkian de Ciência, Oeiras, Portugal
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36
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Duarte F, Martins B, Pinto CS, Silva MJ. A Deep Learning Method for ICD-10 Coding of Free-Text Death Certificates. Progress in Artificial Intelligence 2017. [DOI: 10.1007/978-3-319-65340-2_12] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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37
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Wedemeyer H, Port K, Deterding K, Wranke A, Kirschner J, Bruno B, Martins B, Glenn J, Kornberg M, Manns M. A phase 2 dose-escalation study of lonafarnib plus ritonavir in patients with chronic hepatitis D: final results from the Lonafarnib with ritonavir in HDV-4 (LOWR HDV-4) study. J Hepatol 2017. [DOI: 10.1016/s0168-8278(17)30310-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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38
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Padua I, Ribeiro A, Padua P, Guimarães P, Silva M, Piso D, Martins B, Aldrovani M, Semolin L, Camacho A, Laus J. Effects of timolol maleate, levobunolol and apraclonidine on intraocular pressure, pupil size, blood pressure and heart rate in beagles. ARQ BRAS MED VET ZOO 2016. [DOI: 10.1590/1678-4162-8093] [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] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT The aim of this study was to evaluate changes in intraocular pressure (IOP), pupil size (PS), blood pressure (BP), heart rate (HR), and ECG variables (Pms wave PmV, PR interval, QRS complex, RMV wave and QT intervals) over time during the instillation of 0.5% timolol, 0.5% levobunolol and 0.5% apraclonidine in clinically normal dogs. Ten adult beagles were used. Baseline values were measured at 8a.m., 2p.m. and 8p.m., for three consecutive days. A waiting period of 10 days between the administrations of each drug was established. For 15 consecutive days, the drug being tested was instilled in one eye of each dog twice a day (7a.m. and 7p.m.). The parameters were evaluated at the aforementioned times on days 3, 6, 9, 12 and 15. Data were statistically compared using the Bonferroni test and one-way repeated measures analysis of variance (P<0.05). The Pearson test was used to evaluate any correlation between QT interval, HR and BP. The tested drugs did not find a decrease in IOP. A significant decreased in PS was observed in almost all dogs following levobunolol administration, relative to the control eye. A significant decrease in HR was observed on day 3 following levobunolol treatment, while apraclonidine induced an increase on day 15. Blood pressure was reduced in all measurement time points following apraclonidine treatment. A negative correlation between QT interval and HR was only observed in dogs treated with timolol. In conclusion, levobunolol was the only drug that induced significant alterations in PS. Apraclonidine was the only drug that induced systemic hypotension. Timolol was the only drug to that induced a negative correlation between QT and HR.
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Affiliation(s)
| | | | - P.P.M. Padua
- Fundación Universitaria Agraria de Colombia, Colombia
| | | | | | - D.Y.T. Piso
- Universidad Cooperativa de Colombia, Colombia
| | | | | | | | | | - J.L. Laus
- Universidade Estadual Paulista, Brazil
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Abstract
ABSTRACT
Understanding the function of cellular machines requires a thorough analysis of the structural elements that underline their function. Electron microscopy (EM) has been pivotal in providing information about cellular ultrastructure, as well as macromolecular organization. Biological materials can be physically fixed by vitrification and imaged with cryo-electron tomography (cryo-ET) in a close-to-native condition. Using this technique, one can acquire three-dimensional (3D) information about the macromolecular architecture of cells, depict unique cellular states and reconstruct molecular networks. Technical advances over the last few years, such as improved sample preparation and electron detection methods, have been instrumental in obtaining data with unprecedented structural details. This presents an exciting opportunity to explore the molecular architecture of both individual cells and multicellular organisms at nanometer to subnanometer resolution. In this Commentary, we focus on the recent developments and in situ applications of cryo-ET to cell and structural biology.
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Affiliation(s)
- Rossitza N. Irobalieva
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, Zurich 8057, Switzerland
| | - Bruno Martins
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, Zurich 8057, Switzerland
| | - Ohad Medalia
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, Zurich 8057, Switzerland
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University, Beer-Sheva 84105, Israel
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Tonin AA, Martins B, Zago RVMS, Tochetto C, Azenha NP, Schaefer PC, Martins JLR, Badke MRT. Outbreak of leptospirosis: reproductive losses in sheep. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s00580-014-2056-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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41
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Costa F, Teles P, Nogueira A, Barreto A, Santos A, Carvalho A, Martins B, Oliveira C, Gaspar C, Barros C, Neves D, Costa D, Rodrigues E, Godinho F, Alves F, Cardoso G, Cantinho G, Conde I, Vale J, Santos J, Isidoro J, Pereira J, Salgado L, Rézio M, Vieira M, Simãozinho P, Almeida P, Castro R, Parafita R, Pintão S, Lúcio T, Reis T, Vaz P. Estimation of the collective ionizing dose in the Portuguese population for the years 2011 and 2012, due to nuclear medicine exams. Rev Esp Med Nucl Imagen Mol 2015; 34:1-8. [DOI: 10.1016/j.remn.2014.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 03/28/2014] [Accepted: 03/31/2014] [Indexed: 10/25/2022]
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42
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Costa F, Teles P, Nogueira A, Barreto A, Santos A, Carvalho A, Martins B, Oliveira C, Gaspar C, Barros C, Neves D, Costa D, Rodrigues E, Godinho F, Alves F, Cardoso G, Cantinho G, Conde I, Vale J, Santos J, Isidoro J, Pereira J, Salgado L, Rézio M, Vieira M, Simãozinho P, Almeida P, Castro R, Parafita R, Pintão S, Lúcio T, Reis T, Vaz P. Estimation of the collective ionizing dose in the Portuguese population for the years 2011 and 2012, due to nuclear medicine exams. Rev Esp Med Nucl Imagen Mol 2015. [DOI: 10.1016/j.remnie.2014.12.009] [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: 10/24/2022]
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43
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Plawecka M, Snihirova D, Martins B, K.Szczepanowicz, Warszynski P, Montemor M. Self healing ability of inhibitor-containing nanocapsules loaded in epoxy coatings applied on aluminium 5083 and galvanneal substrates. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.04.035] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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44
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Costa N, Marques O, Godinho S, Carvalho C, Leal B, Vasconcelos C, Marinho A, Moraes-Fontes MF, Gomes da Costa A, Ponte C, Marques R, Coias T, Martins AR, Viana JF, Martins B, Fesel C. A3.6 Two components contributing to reduced treg surface CD25 in sle patients and their unaffected relatives. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-205124.100] [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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45
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Cohen R, le Roux CW, Papamargaritis D, Salles JE, Petry T, Correa JL, Pournaras DJ, Galvao Neto M, Martins B, Sakai P, Schiavon CA, Sorli C. Role of proximal gut exclusion from food on glucose homeostasis in patients with Type 2 diabetes. Diabet Med 2013; 30:1482-6. [PMID: 23802863 DOI: 10.1111/dme.12268] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/18/2013] [Indexed: 12/21/2022]
Abstract
AIMS To report Type 2 diabetes-related outcomes after the implantation of a duodenal-jejunal bypass liner device and to investigate the role of proximal gut exclusion from food in glucose homeostasis using the model of this device. METHODS Sixteen patients with Type 2 diabetes and BMI <36 kg/m(2) were evaluated before and 1, 12 and 52 weeks after duodenal-jejunal bypass liner implantation and 26 weeks after explantation. Mixed-meal tolerance tests were conducted over a period of 120 min and glucose, insulin and C-peptide levels were measured. The Matsuda index and the homeostatic model of assessment of insulin resistance were used for the estimation of insulin sensitivity and insulin resistance. The insulin secretion rate was calculated using deconvolution of C-peptide levels. RESULTS Body weight decreased by 1.3 kg after 1 week and by 2.4 kg after 52 weeks (P < 0.001). One year after duodenal-jejunal bypass liner implantation, the mean (sem) HbA(1c) level decreased from 71.3 (2.4) mmol/mol (8.6[0.2]%) to 58.1 (4.4) mmol/mol (7.5 [0.4]%) and mean (sem) fasting glucose levels decreased from 203.3 (13.5) mg/dl to 155.1 (13.1) mg/dl (both P < 0.001). Insulin sensitivity improved by >50% as early as 1 week after implantation as measured by the Matsuda index and the homeostatic model of assessment of insulin resistance (P < 0.001), but there was a trend towards deterioration in all the above-mentioned variables 26 weeks after explantation. Fasting insulin levels, insulin area under the curve, fasting C-peptide, C-peptide area under the curve, fasting insulin and total insulin secretion rates did not change during the duodenal-jejunal bypass liner implantation period or after explantation. CONCLUSIONS The duodenal-jejunal bypass liner improves glycaemia in overweight and obese patients with Type 2 diabetes by rapidly improving insulin sensitivity. A reduction in hepatic glucose output is the most likely explanation for this improvement.
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Affiliation(s)
- R Cohen
- Center of Excellence for the Surgical Treatment of Morbid Obesity, Hospital Oswaldo Cruz, São Paulo, São Paulo, Brazil
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Fernandes T, Vale AP, Martins B, Morais J, Kolinsky R. The deficit of letter processing in developmental dyslexia: combining evidence from dyslexics, typical readers and illiterate adults. Dev Sci 2013; 17:125-41. [DOI: 10.1111/desc.12102] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 06/10/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Tânia Fernandes
- Faculty of Psychology and Education Sciences; Universidade do Porto; Portugal
| | - Ana P. Vale
- Dyslexia Unit, Department of Education and Psychology; Universidade de Trás-os-Montes e Alto Douro; Portugal
| | - Bruno Martins
- Dyslexia Unit, Department of Education and Psychology; Universidade de Trás-os-Montes e Alto Douro; Portugal
| | - José Morais
- Unité de recherche en Neurosciences Cognitives (UNESCOG); Center for Research in Cognition and Neurosciences (CRCN); Université Libre de Bruxelles; Belgium
| | - Régine Kolinsky
- Unité de recherche en Neurosciences Cognitives (UNESCOG); Center for Research in Cognition and Neurosciences (CRCN); Université Libre de Bruxelles; Belgium
- Fonds de la Recherche Scientifique-FNRS; Belgium
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Cohen RV, Neto MG, Correa JL, Sakai P, Martins B, Schiavon CA, Petry T, Salles JE, Mamedio C, Sorli C. A pilot study of the duodenal-jejunal bypass liner in low body mass index type 2 diabetes. J Clin Endocrinol Metab 2013; 98:E279-82. [PMID: 23337729 DOI: 10.1210/jc.2012-2814] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
CONTEXT The duodenal-jejunal bypass liner (DJBL) is a device that mimics the intestinal portion of gastric bypass surgery and has been shown to improve glucose metabolism rapidly in obese subjects with type 2 diabetes (T2DM). OBJECTIVE To assess the safety of the DJBL and to evaluate its potential to affect glycemic control beneficially in subjects with T2DM who were not morbidly obese. PATIENTS AND DESIGN Adult men and women with T2DM of ≤ 10 years' duration with hemoglobin A1c (HbA1c) ≥ 7.5% and ≤ 10% and having a body mass index ≥ 26 to ≤ 50 kg/m(2) were enrolled in this prospective, 52-week, single-center, open-label clinical study. MAIN OUTCOME MEASURES Adverse events and changes in body weight, fasting plasma glucose (FPG) levels, and HbA1c levels. RESULTS Sixteen of 20 subjects implanted with the DJBL completed the 1-year study (mean body mass index = 30.0 ± 3.6, mean ± SD). Gastrointestinal disorders were reported by 13 subjects, and metabolic or nutritional disorders occurred in 14 subjects. FPG levels dropped from 207 ± 61 mg/dL at baseline to 139 ± 37 mg/dL at 1 week and remained low throughout the study. Mean body weight also declined, but the change in body weight was not significantly associated with change in FPG at 52 weeks. HbA1c declined from 8.7 ± 0.9% at baseline to 7.5 ± 1.6% at week 52. CONCLUSIONS The improvements in glycemic status were observed at 1 year in moderately obese subjects with T2DM, suggesting that the DJBL may represent an effective adjuvant to standard medical therapy of T2DM in this population.
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Affiliation(s)
- Ricardo Vitor Cohen
- Center of Excellence of Metabolic and Bariatric Surgery, Hospital Oswaldo Cruz, Rua Padre Joao Manuel 222 CJ 131, São Paulo-SP, Brasil 04002-020.
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Martins B, Sorbello MP, Retes F, Kawaguti FS, Lima MS, Hondo FY, Stelko G, Ribeiro U, Maluf-Filho F. Endoscopic removal of migrated esophageal stent--the "grasper and pusher" method. Endoscopy 2012; 44 Suppl 2 UCTN:E10. [PMID: 22396251 DOI: 10.1055/s-0031-1291496] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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: 12/13/2022]
Affiliation(s)
- B Martins
- Department of Gastroenterology, Cancer Institute, University of São Paulo Medical School, São Paulo, Brazil.
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Bento J, Martins B, Teles P, Neves M, Colarinha P, Alves F, Teixeira N, Vaz P, Zankl M. Performance assessment and uncertainty evaluation of a portable NaI-based detection system used for thyroid monitoring. Radiat Prot Dosimetry 2012; 151:252-261. [PMID: 22345216 DOI: 10.1093/rpd/ncs011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This work aims at assessing the performance of a portable detection system, equipped with an NaI(Tl) scintillation detector for in vivo thyroid monitoring, which was properly calibrated using an anthropomorphic neck phantom. The anthropomorphic physical phantoms commonly used for the efficiency calibration of in vivo counters often present certain limitations regarding the geometry and the activity distribution. Therefore, the feasibility of these detection systems for in vivo monitoring should be assessed whenever possible. To accomplish this assessment, patients to whom (99m)Tc and (123)I marked radiopharmaceuticals have been administered in the framework of nuclear medicine diagnostic procedures were monitored. As the biokinetic models of the administered radiopharmaceuticals are known, the time-dependent activity functions in the critical organs after administration are easily quantified. The measured activities in the thyroid using the NaI(Tl) scintillation detector were compared with the estimated activities using the biokinetic models, in order to reach conclusion about the applicability of the portable scintillation counter for in vivo thyroid monitoring. The state-of-the-art Monte Carlo computer program PENELOPE and two voxel phantoms (male and female) were used to evaluate the overall uncertainties influencing the thyroid monitoring. A computational parametric study was performed to quantify the influence of several parameters in the activity quantification (neck-detector distance, thyroid shape, thyroid size and overlying tissue thickness), which allowed one to gain insight and to better understand the discrepancies between the calculated and measured activities.
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Affiliation(s)
- J Bento
- Instituto Tecnológico e Nuclear, Sacavém, Portugal.
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Bento J, Teles P, Neves M, Santos AI, Cardoso G, Barreto A, Alves F, Guerreiro C, Rodrigues A, Santos JAM, Capelo C, Parafita R, Martins B. Study of nuclear medicine practices in Portugal from an internal dosimetry perspective. Radiat Prot Dosimetry 2012; 149:438-443. [PMID: 21795254 DOI: 10.1093/rpd/ncr319] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Nuclear medicine practices involve the handling of a wide range of pharmaceuticals labelled with different radionuclides, for diagnostic and therapeutic purposes. This work intends to evaluate the potential risks of internal contamination of nuclear medicine staff in several Portuguese nuclear medicine services and to conclude about the requirement of a routine internal monitoring. A methodology proposed by the International Atomic Energy Agency (IAEA), providing a set of criteria to determine the need, or not, for an internal monitoring programme, was applied. The evaluation of the risk of internal contaminations in a given set of working conditions is based on the type and amount of radionuclides being handled, as well as the safety conditions with which they are manipulated. The application of the IAEA criteria showed that 73.1% of all the workers included in this study should be integrated in a routine monitoring programme for internal contaminations; more specifically, 100% of workers performing radioimmunoassay techniques should be monitored. This study suggests that a routine monitoring programme for internal exposures should be implemented in Portugal for most nuclear medicine workers.
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Affiliation(s)
- J Bento
- Instituto Tecnológico e Nuclear, Sacavém, Portugal.
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