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Marques D, Castelão F, Silva RP, Rios AC. Intraparenchymal pericatheter cyst: a rare but important manifestation of cerebrospinal shunt failure. Neurol Neurochir Pol 2024; 58:136-138. [PMID: 38344853 DOI: 10.5603/pjnns.98075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/24/2024] [Indexed: 03/05/2024]
Affiliation(s)
- Diogo Marques
- Neuroradiology Department, Hospital Garcia de Orta, Almada, Portugal.
| | - Filipa Castelão
- Neuroradiology Department, Hospital Garcia de Orta, Almada, Portugal
| | | | - Ana Cristina Rios
- Neuroradiology Department, Hospital Garcia de Orta, Almada, Portugal
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Piteira R, Marques D, Carrega F, Silvério R, Fera M. Tapia's Syndrome: A Comprehensive Analysis of a Rare Intensive Care-Associated Complication. Cureus 2024; 16:e53486. [PMID: 38314391 PMCID: PMC10838374 DOI: 10.7759/cureus.53486] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2024] [Indexed: 02/06/2024] Open
Abstract
Tapia's syndrome is a rare complication of airway manipulation, involving the simultaneous paralysis of the hypoglossal nerve and the recurrent laryngeal nerve. The etiological mechanism is commonly attributed to compression or stretching during airway manipulation. An efficient recognition of this condition is pivotal for a comprehensive multidisciplinary approach and optimized recovery time. The presence of persistent dysphagia and dysphonia, coupled with observable deviation or restriction of tongue movement, not only after oral endotracheal intubation for surgical interventions with general anesthesia but also after a prolonged orotracheal intubation period in the intensive care, should heighten the suspicion of this syndrome. This report details a case of Tapia's syndrome emerging as a complication of airway manipulation and prolonged intubation in the intensive care unit.
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Affiliation(s)
- Rita Piteira
- Internal Medicine, Centro Hospitalar de Setúbal, Setúbal, PRT
| | - Diogo Marques
- Neuroradiology, Hospital Garcia de Orta, Almada, PRT
| | - Filipa Carrega
- Internal Medicine, Centro Hospitalar de Setúbal, Setúbal, PRT
| | - Rita Silvério
- Internal Medicine, Centro Hospitalar de Setúbal, Setúbal, PRT
| | - Manuela Fera
- Internal Medicine, Centro Hospitalar de Setúbal, Setúbal, PRT
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Vaziri N, Marques D, Greenway SC, Bousman CA. The cellular mechanism of antipsychotic-induced myocarditis: A systematic review. Schizophr Res 2023; 261:206-215. [PMID: 37797362 DOI: 10.1016/j.schres.2023.09.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 04/23/2023] [Accepted: 09/24/2023] [Indexed: 10/07/2023]
Abstract
Antipsychotic drug-induced myocarditis is a serious and potentially fatal adverse drug reaction characterized by inflammation of the heart muscle (myocardium) that typically develops within the first month after commencing an antipsychotic drug. Although the precise mechanism of this severe adverse drug reaction is unknown, multiple theories have been proposed with varying levels of support from cellular or animal studies. We conducted a systematic review, in accordance with PRISMA guidelines, of published preclinical and clinical studies investigating the cellular mechanism by which antipsychotic drugs induce myocarditis. A literature search including all studies available before December 10, 2022, yielded 15 studies that met our inclusion criteria. Antipsychotics examined in the included studies included clozapine (n = 13), ziprasidone (n = 1), amisulpride (n = 1), haloperidol (n = 1), levomepromazine (n = 1), olanzapine (n = 1), and sertindole (n = 1). The evidence suggests several overlapping mechanistic cascades involving: (1) increased levels of catecholamines, (2) increased proinflammatory cytokines, (3) increased reactive oxygen species (ROS), (4) reduced antioxidant levels and activity, and (5) mitochondrial damage. Notable limitations such as, a focus on clozapine, sample heterogeneity, and use of supratherapeutic doses will need to be addressed in future studies. Discovery of the mechanism by which antipsychotic drugs induce myocarditis will allow the development of clinically-useful biomarkers to identify those patients at increased risk prior to drug exposure. The development or repurposing of therapeutics to prevent or treat drug-induced myocarditis will also be possible and this will enable increased and safe use of antipsychotics for those patients in need.
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Affiliation(s)
- Nazanin Vaziri
- Department of Medical Genetics, University of Calgary, Calgary, AB, Canada
| | - Diogo Marques
- Department of Medical Genetics, University of Calgary, Calgary, AB, Canada
| | - Steven C Greenway
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Biochemistry & Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Chad A Bousman
- Department of Medical Genetics, University of Calgary, Calgary, AB, Canada; Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Psychiatry, University of Calgary, Calgary, AB, Canada; Department of Physiology & Pharmacology, University of Calgary, Calgary, AB, Canada; Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
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4
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Castelão F, Pais M, Marques D, Sequeira M, Marques C, Rios AC. Racemose neurocysticercosis presenting with thalamic stroke: A case report and literature review. Radiol Case Rep 2023; 18:3881-3883. [PMID: 37670918 PMCID: PMC10475393 DOI: 10.1016/j.radcr.2023.08.023] [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: 04/07/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 09/07/2023] Open
Abstract
Racemose neurocysticercosis is an uncommon type of neurocysticercosis that represents a particularly aggressive infection. It is characterized by the presence of multiple confluent cysts within the subarachnoid space and it carries unique diagnostic challenges. Clinical manifestations include headache, cerebrovascular events, and life-threatening hydrocephalus. A 56-year-old female presented with sudden onset headache and right-sided hemisensory loss. Brain MRI revealed multiple cystic lesions in the subarachnoid space consistent with racemose neurocysticercosis and left thalamus acute lacunar infarct. This case report emphasizes the clinical importance, unique characteristics, and imaging features of racemose neurocysticercosis and its complications.
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Affiliation(s)
- Filipa Castelão
- Neuroradiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Mariana Pais
- Internal Medicine Department, Hospital Garcia de Orta, Almada, Portugal
| | - Diogo Marques
- Neuroradiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Mafalda Sequeira
- Internal Medicine Department, Hospital Garcia de Orta, Almada, Portugal
| | - Cristina Marques
- Neuroradiology Department, Hospital Garcia de Orta, Almada, Portugal
| | - Ana Cristina Rios
- Neuroradiology Department, Hospital Garcia de Orta, Almada, Portugal
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Silva S, Paredes T, Teixeira RJ, Brandão T, Dimitrovová K, Marques D, Sousa J, Leal M, Dias A, Neves C, Marques G, Amaral N. Emotional Distress in Portuguese Cancer Patients: The Use of the Emotion Thermometers (ET) Screening Tool. Healthcare (Basel) 2023; 11:2689. [PMID: 37830726 PMCID: PMC10572115 DOI: 10.3390/healthcare11192689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/27/2023] [Accepted: 09/27/2023] [Indexed: 10/14/2023] Open
Abstract
Cancer patients may experience significant distress. The "Emotion Thermometers" (ETs) are a short visual analogue scale used to screen patients for psychosocial risk. This study aimed to assess emotional distress in a large sample of cancer patients attending psychological services at an non-governmental organization (NGO), and to explore factors that may contribute to it. The ETs were answered by 899 cancer patients. They were, on average, 59.9 years old, the majority were female, had breast cancer, were under treatment or were disease-free survivors, and reported high levels of emotional distress, above the cut-off (≥5). A Generalized Linear Model was used to measure the association between the level of distress, age, gender, disease phase and 33 items of the problem list. Four items-sadness, depression, sleep and breathing-were found to be significantly related to a higher level of distress. Additionally, women and patients who were in the palliative phase also had significantly higher levels of distress. The results confirm the need for early emotional screening in cancer patients, as well as attending to the characteristics of each patient. Additionally, they highlight the utility of the ETs for the clinical practice, allowing to optimize the referral to specialized psychosocial services.
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Affiliation(s)
- Sónia Silva
- Portuguese Cancer League (Central Branch), Rua Dr. António José de Almeida, nº 329—2º Sl 56, 3000-045 Coimbra, Portugal; (T.P.); (N.A.)
| | - Tiago Paredes
- Portuguese Cancer League (Central Branch), Rua Dr. António José de Almeida, nº 329—2º Sl 56, 3000-045 Coimbra, Portugal; (T.P.); (N.A.)
| | - Ricardo João Teixeira
- REACH—Mental Health Clinic, 4000-138 Porto, Portugal;
- CINEICC, Faculty of Psychology and Educational Sciences, University of Coimbra, 3004-531 Coimbra, Portugal
| | - Tânia Brandão
- William James Center for Research, ISPA—Instituto Universitário, 1149-041 Lisboa, Portugal;
| | - Klára Dimitrovová
- Comprehensive Health Research Center, CHRC, NOVA University Lisboa, 1150-082 Lisboa, Portugal;
- MOAI Consulting, 1350-346 Lisboa, Portugal; (D.M.); (J.S.)
| | - Diogo Marques
- MOAI Consulting, 1350-346 Lisboa, Portugal; (D.M.); (J.S.)
| | - Joana Sousa
- MOAI Consulting, 1350-346 Lisboa, Portugal; (D.M.); (J.S.)
| | - Monick Leal
- Portuguese Cancer League (North Branch), 4200-172 Porto, Portugal;
| | - Albina Dias
- Portuguese Cancer League (South Branch), 1099-023 Lisboa, Portugal;
| | - Carole Neves
- Portuguese Cancer League (Madeira Branch), 9050-023 Funchal, Portugal;
| | - Graciete Marques
- Portuguese Cancer League (Azores Branch), 9700-171 Angra do Heroísmo, Açores, Portugal;
| | - Natália Amaral
- Portuguese Cancer League (Central Branch), Rua Dr. António José de Almeida, nº 329—2º Sl 56, 3000-045 Coimbra, Portugal; (T.P.); (N.A.)
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Marques D, Costa AL, Mansinho A, Quintela A, Pratas E, Brito-da-Silva J, Cruz J, Félix J, Rodrigues J, Mota M, Teixeira AR, Dâmaso S, Pinheiro S, Andreozzi V, Costa L, Barros AG. The REWRITE Study - REal-WoRld effectIveness of TrifluridinE/tipiracil in Patients with Previously Treated Metastatic Colorectal Cancer. Clin Oncol (R Coll Radiol) 2023; 35:665-672. [PMID: 37487914 DOI: 10.1016/j.clon.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 05/31/2023] [Accepted: 07/11/2023] [Indexed: 07/26/2023]
Abstract
AIMS In the pivotal RECOURSE trial, trifluridine/tipiracil improved survival outcomes in refractory metastatic colorectal cancer (mCRC), while demonstrating an acceptable toxicity profile. Routine clinical practice evidence is important to support the ongoing value of recently approved medicines. Our objective was to assess the utilisation patterns and real-world effectiveness of trifluridine/tipiracil in previously treated mCRC patients. MATERIALS AND METHODS This was a retrospective observational study including consecutive patients who started trifluridine/tipiracil between 1 April 2018 and 30 September 2019 in the medical oncology departments of three major public hospitals in Portugal. The primary outcome measure was overall survival. Associations between overall survival and patient and tumour characteristics were assessed using multivariate Cox regression analyses. RESULTS In total, 111 patients were included in the study, with a mean age of 64 years. From these, 45.9% received two prior lines of treatment, 47.8% had three or more previous lines of treatment and 83.6% had Eastern Cooperative Oncology Group (ECOG) performance status 0-1 at baseline. The median duration of trifluridine/tipiracil treatment was 3.7 cycles (95% confidence interval 3.4-4.1). Most patients (80.4%) remained on their planned dose throughout the trifluridine/tipiracil treatment period, fulfilling 100% relative dose intensity. The median overall survival in the total study cohort was 7.9 months (95% confidence interval 6.4-9.8) and the median progression-free survival was 3.4 months (95% confidence interval 3.2-3.9). The median overall survival was significantly higher in patients with a normal serum lactate dehydrogenase (LDH) level (median overall survival 11.2 months for [135, 205] IU/l LDH [95% confidence interval 8.2-NR] and 13.6 months for [205, 251] IU/l LDH [95% confidence interval 8.2-NR]) and in better fitted (ECOG = 0-1) patients (median overall survival 8.0 months; 95% confidence interval 6.7-10.0). The median time to worsening performance status was 6.2 months (95% confidence interval 5.0-8.0). Treatment discontinuation due to adverse events was low (3.1%). CONCLUSION Our study confirms the effectiveness of trifluridine/tipiracil in real-life mCRC patients. Overall survival and progression-free survival outcomes are consistent with the efficacy profile reported in the earlier randomised RECOURSE clinical trial. Like other real-world studies, we found no additional safety concerns in the use of trifluridine/tipiracil.
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Affiliation(s)
- D Marques
- Department of Medical Oncology, Portuguese Oncology Institute, Porto, Portugal
| | - A L Costa
- Department of Medical Oncology, Hospital de Santa Maria, Centro Hospitalar Lisboa Norte, Lisbon, Portugal
| | - A Mansinho
- Department of Medical Oncology, Hospital de Santa Maria, Centro Hospitalar Lisboa Norte, Lisbon, Portugal
| | - A Quintela
- Department of Medical Oncology, Hospital de Santa Maria, Centro Hospitalar Lisboa Norte, Lisbon, Portugal
| | - E Pratas
- Department of Medical Oncology, University Hospital of Coimbra, Coimbra, Portugal
| | - J Brito-da-Silva
- Department of Medical Oncology, Portuguese Oncology Institute, Porto, Portugal
| | - J Cruz
- Department of Medical Oncology, University Hospital of Coimbra, Coimbra, Portugal
| | - J Félix
- Exigo Consultores, Lisbon, Portugal
| | - J Rodrigues
- Department of Medical Oncology, University Hospital of Coimbra, Coimbra, Portugal
| | - M Mota
- Exigo Consultores, Lisbon, Portugal
| | - A R Teixeira
- Department of Medical Oncology, Portuguese Oncology Institute, Porto, Portugal
| | - S Dâmaso
- Department of Medical Oncology, Hospital de Santa Maria, Centro Hospitalar Lisboa Norte, Lisbon, Portugal
| | - S Pinheiro
- Department of Medical Oncology, University Hospital of Coimbra, Coimbra, Portugal
| | | | - L Costa
- Department of Medical Oncology, Hospital de Santa Maria, Centro Hospitalar Lisboa Norte, Lisbon, Portugal
| | - A G Barros
- Department of Medical Oncology, University Hospital of Coimbra, Coimbra, Portugal
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Vaziri N, Marques D, Wang X, Machiraju P, Narang A, Vlahos K, Pantelis C, Greenway SC, Bousman CA. Generation of two human induced pluripotent stem cell lines from peripheral blood mononuclear cells of clozapine-tolerant and clozapine-induced myocarditis patients with treatment-resistant schizophrenia. Stem Cell Res 2022; 63:102877. [PMID: 35917601 DOI: 10.1016/j.scr.2022.102877] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 07/12/2022] [Accepted: 07/25/2022] [Indexed: 11/30/2022] Open
Abstract
Clozapine has superior efficacy in the treatment of refractory schizophrenia; however, use of clozapine is limited due to severe side effects, including myocarditis. Using non-integrative Sendai virus, we generated induced pluripotent stem cell lines from peripheral blood mononuclear cells of two patients with refractory schizophrenia, one clozapine-tolerant and one clozapine-induced myocarditis. Both cell lines exhibited a normal karyotype and pluripotency was validated by flow cytometry, immunofluorescence and their ability to differentiate into the three germ layers. These lines can be used to generate 2D and 3D patient-specific human cellular models to identify the mechanism by which clozapine induces myocardial inflammation.
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Affiliation(s)
- Nazanin Vaziri
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Diogo Marques
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Xuemei Wang
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | | | - Ankita Narang
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | | | - Christos Pantelis
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne & Melbourne Health, Melbourne, VIC, Australia
| | - Steven C Greenway
- Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Chad A Bousman
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne & Melbourne Health, Melbourne, VIC, Australia; Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
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Lee D, Robertson C, Marques D. Quantifying the small-area spatio-temporal dynamics of the Covid-19 pandemic in Scotland during a period with limited testing capacity. Spat Stat 2022; 49:100508. [PMID: 33868908 PMCID: PMC8035810 DOI: 10.1016/j.spasta.2021.100508] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/31/2021] [Accepted: 03/31/2021] [Indexed: 05/24/2023]
Abstract
Modelling the small-area spatio-temporal dynamics of the Covid-19 pandemic is of major public health importance, because it allows health agencies to better understand how and why the virus spreads. However, in Scotland during the first wave of the pandemic testing capacity was severely limited, meaning that large numbers of infected people were not formally diagnosed as having the virus. As a result, data on confirmed cases are unlikely to represent the true infection rates, and due to the small numbers of positive tests these data are not available at the small-area level for confidentiality reasons. Therefore to estimate the small-area dynamics in Covid-19 incidence this paper analyses the spatio-temporal trends in telehealth data relating to Covid-19, because during the first wave of the pandemic the public were advised to call the national telehealth provider NHS 24 if they experienced symptoms of the virus. Specifically, we propose a multivariate spatio-temporal correlation model for modelling the proportions of calls classified as either relating to Covid-19 directly or having related symptoms, and provide software for fitting the model in a Bayesian setting using Markov chain Monte Carlo simulation. The model was developed in partnership with the national health agency Public Health Scotland, and here we use it to analyse the spatio-temporal dynamics of the first wave of the Covid-19 pandemic in Scotland between March and July 2020, specifically focusing on the spatial variation in the peak and the end of the first wave.
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Affiliation(s)
- Duncan Lee
- School of Mathematics and Statistics, University of Glasgow, Glasgow, G12 8SQ, Scotland, United Kingdom
| | - Chris Robertson
- Department of Mathematics and Statistics, University of Strathclyde, Glasgow, G1 1XH, Scotland, United Kingdom
- Public Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow G2 6QE, Scotland, United Kingdom
| | - Diogo Marques
- Public Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow G2 6QE, Scotland, United Kingdom
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Paratz E, Wilson W, Mock N, Marques D, Kushwaha V, Eggleton S, Harries J, Flavio R, da Silva S, dos Santos da Silva A, Saramento J, de Sousa Maurays J, Creati L, Horton A, Gutman S, Barlis P, Appelbe A, Bayley N. Doctors With Borders: The Impact Of International Travel Bans on Timorese Citizens Awaiting Cardiac Intervention. Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.06.474] [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: 10/16/2022]
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Henriques I, Caramês J, Francisco H, Caramês G, Hernández-Alfaro F, Marques D. Prevalence of maxillary sinus septa: systematic review and meta-analysis. Int J Oral Maxillofac Surg 2021; 51:823-831. [PMID: 34742634 DOI: 10.1016/j.ijom.2021.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 10/16/2021] [Accepted: 10/19/2021] [Indexed: 10/19/2022]
Abstract
The aim of this systematic review and meta-analysis was to determine the prevalence and characteristics of maxillary sinus septa using cone beam computed tomography and computed tomography data. Publications were searched until October 5, 2020 in three electronic databases. Additionally, article bibliographies were searched, and authors were contacted if required. This review has been registered in PROSPERO (CRD42019124933). Two independent evaluators assessed methodological quality using the Joanna Briggs Institute levels of evidence; inter-rater reliability tests were performed (Cohen's κ). The prevalence of maxillary sinus septa was expressed as a proportion; differences according to sex were reported in terms of the odds ratio (OR) and 95% confidence interval (95% CI). Heterogeneity and sources of heterogeneity were evaluated by meta-regression. Publication bias was assessed by visual analysis of the funnel plot. Statistical significance was set at P < 0.05. The 62 studies identified and included in the review involved 13,701 patients (22,460 sinuses). The meta-analysis of 35 studies (14,664 sinuses) revealed an overall mean sinus septa prevalence per sinus of 33.2% (95% CI 27.8-38.5%; I2 = 98.32%). The meta-analysis of 42 studies (9631 patients) found an overall mean sinus septa prevalence per patient of 41.0% (95% CI 36.0-46.0%, I2 = 96.45%). The OR for the difference in septa prevalence between sexes was 0.785 (95% CI 0.590-1.046; P = 0.098, I2 = 73.24%). Septa were most frequent in the middle area of the sinus and with a transverse orientation (86.0%). Within the limitations, the results suggest a high proportion of septa in the sinus, commonly in the middle area, which can interfere with the success of sinus floor elevation required for implant rehabilitation.
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Affiliation(s)
- I Henriques
- Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal
| | - J Caramês
- Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal; Instituto de Implantologia, Lisbon, Portugal; LIBPhys-FCT UID/FIS/04559/2013, Lisbon, Portugal
| | - H Francisco
- Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal; Instituto de Implantologia, Lisbon, Portugal
| | - G Caramês
- Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal; Instituto de Implantologia, Lisbon, Portugal
| | | | - D Marques
- Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal; Instituto de Implantologia, Lisbon, Portugal; LIBPhys-FCT UID/FIS/04559/2013, Lisbon, Portugal; Evidence Based Dentistry Research Centre, Cochrane Collaboration Portugal, Lisbon, Portugal.
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Marques D, Ilic A, Sousa L. Mansard Roofline Model: Reinforcing the Accuracy of the Roofs. ACM Trans Model Perform Eval Comput Syst 2021. [DOI: 10.1145/3475866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Continuous enhancements and diversity in modern multi-core hardware, such as wider and deeper core pipelines and memory subsystems, bring to practice a set of hard-to-solve challenges when modeling their upper-bound capabilities and identifying the main application bottlenecks. Insightful roofline models are widely used for this purpose, but the existing approaches overly abstract the micro-architecture complexity, thus providing unrealistic performance bounds that lead to a misleading characterization of real-world applications. To address this problem, the Mansard Roofline Model (MaRM), proposed in this work, uncovers a minimum set of architectural features that must be considered to provide insightful, but yet accurate and realistic, modeling of performance upper bounds for modern processors. By encapsulating the retirement constraints due to the amount of retirement slots, Reorder-Buffer and Physical Register File sizes, the proposed model accurately models the capabilities of a real platform (average rRMSE of 5.4%) and characterizes 12 application kernels from standard benchmark suites. By following a herein proposed MaRM interpretation methodology and guidelines, speed-ups of up to 5× are obtained when optimizing real-world bioinformatic application, as well as a super-linear speedup of 18.5× when parallelized.
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Affiliation(s)
- Diogo Marques
- INESC-ID, Instituto Superior Técnico, Universidade de Lisboa, Portugal
| | - Aleksandar Ilic
- INESC-ID, Instituto Superior Técnico, Universidade de Lisboa, Portugal
| | - Leonel Sousa
- INESC-ID, Instituto Superior Técnico, Universidade de Lisboa, Portugal
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Martins JNR, Silva EJNL, Marques D, Belladonna F, Simões-Carvalho M, Vieira VTL, Antunes HS, Braz Fernandes FMB, Versiani MA. Design, metallurgical features, mechanical performance and canal preparation of six reciprocating instruments. Int Endod J 2021; 54:1623-1637. [PMID: 33829516 DOI: 10.1111/iej.13529] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 04/05/2021] [Indexed: 11/28/2022]
Abstract
AIM To compare six reciprocating instruments regarding their geometric design, metallurgical characteristics, mechanical behaviour and ability to prepare root canals. METHODOLOGY A total of 246 new 25-mm NiTi instruments (41 per group) from six reciprocating systems (Reciproc, Reciproc Blue, One Files, One Files Blue, Reverso Silver, and WaveOne Gold) were evaluated throughout a multimethod approach regarding their design using stereomicroscopy (number of blades and helix angle) and scanning electron microscopy (blades symmetry, cross section and surface finishing), nickel-titanium composition, phase transformation temperatures, mechanical performance (cyclic fatigue, torsional and bending resistance) and unprepared canal surface area on anatomically matched mandibular molars assessed by micro-CT. One-way ANOVA and post hoc Tukey's or Mood's median tests were selected depending on sample distribution with significance level set at 5%. RESULTS The instruments had similarities regarding their metal composition and unprepared canal area, whilst differences in phase transformation temperatures and geometric design (number of blades, surface finishing and tip geometry) were observed. Overall, no difference was observed regarding the maximum torque values (P > 0.05), whilst One Files (72 s) and One Files Blue (414 s) had the shortest and longest times to fracture, respectively (P < 0.05). Similar angles of rotation were observed in Reciproc (310°), One Files (285°) and Reverso Silver (318°) instruments (P > 0.05), which were significantly lower than Reciproc Blue (492°), One Files Blue (456°) and WaveOne Gold (492°; P < 0.05). Maximum bending load demonstrated that Reciproc Blue (201.3 gf) was significantly more flexible that the other instruments (P < 0.05). CONCLUSION Although there were similarities in metal composition and percentage of unprepared canal surface, the instruments had differences in the overall geometric design, phase transformation temperatures and in the four mechanical resistance parameters (time to fracture, maximum torque, angle of rotation and maximum bending load).
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Affiliation(s)
- J N R Martins
- Department of Endodontics, Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal.,Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal.,Centro de Estudo de Medicina Dentária Baseada na Evidência (CEMDBE), Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal
| | - E J N L Silva
- Department of Endodontics, School of Dentistry, Grande Rio University (UNIGRANRIO), Rio de Janeiro, Brazil.,Department of Endodontics, Fluminense Federal University, Niteroi, Brazil
| | - D Marques
- Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal.,Centro de Estudo de Medicina Dentária Baseada na Evidência (CEMDBE), Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal.,LIBPhys-FCT UID/FIS/04559/2013, Lisboa, Portugal
| | - F Belladonna
- Department of Endodontics, Fluminense Federal University, Niteroi, Brazil
| | - M Simões-Carvalho
- Department of Endodontics, Fluminense Federal University, Niteroi, Brazil
| | - V T L Vieira
- Department of Endodontics, School of Dentistry, Grande Rio University (UNIGRANRIO), Rio de Janeiro, Brazil
| | - H S Antunes
- Department of Endodontics, School of Dentistry, Grande Rio University (UNIGRANRIO), Rio de Janeiro, Brazil
| | - F M B Braz Fernandes
- CENIMAT/I3N, Department of Materials Science, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - M A Versiani
- Dental Specialty Center, Brazilian Military Police, Minas Gerais, Brazil
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Martins JNR, Silva EJNL, Marques D, Belladonna F, Simões-Carvalho M, Camacho E, Braz Fernandes FM, Versiani MA. Comparison of design, metallurgy, mechanical performance and shaping ability of replica-like and counterfeit instruments of the ProTaper Next system. Int Endod J 2021; 54:780-792. [PMID: 33300121 DOI: 10.1111/iej.13463] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/06/2020] [Accepted: 12/07/2020] [Indexed: 11/30/2022]
Abstract
AIM To compare the ProTaper Next (PTN) system with a replica-like and a counterfeit system regarding design, metallurgy, mechanical performance and shaping ability. METHODOLOGY Replica-like (X-File) and counterfeit (PTN-CF) instruments were compared to the PTN system regarding design (microscopy), phase transformation temperatures (differential scanning calorimetry), nickel-titanium ratio (energy-dispersive X-ray spectroscopy), cyclic fatigue, torsional resistance, bending strength, and untouched canal areas in extracted mandibular molars (micro-CT). anova, post hoc Tukey's and Kruskal-Wallis tests were used according to normality assessment (Shapiro-Wilk test) with the significance level set at 5%. RESULTS Overall similarities in design and nickel-titanium (Ni/Ti) ratio were observed amongst instruments with the X-File having a smoother surface finish. PTN and PTN-CF had mixed austenite plus R-phase (R-phase start approximately at 45 ºC and near 30 ºC, respectively), whilst X-File instruments were austenitic (R-phase started at approximately at 17 ºC) at room temperature (20 ºC). PTN-CF had the greatest inconsistency in the phase transformation temperatures. Time to fracture of PTN-CF X2 and X3 was significantly shorter than PTN and X-File instruments (P < 0.05), whilst no difference was noted in maximum torque to fracture amongst the tested systems (P > 0.05). X-Files and PTN-CF had a stress-induced phase change during bending load. Mean unprepared surface areas of root canals were 25.8% (PTN), 31.1% (X-File) and 32.5% (PTN-CF) with no significant difference amongst groups (P > 0.05). CONCLUSION Similarities amongst the systems were noted in the Ni/Ti ratio and maximum torque to fracture, whilst differences were observed in the design, phase transformation temperatures and mechanical behaviour. The ProTaper Next counterfeit instruments could be considered as the less secure system considering its low-cyclic fatigue resistance. Apart from these differences, the unprepared canal surface areas, obtained with the tested systems, were similar.
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Affiliation(s)
- J N R Martins
- Department of Endodontics, Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal.,Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal.,Centro de Estudo de Medicina Dentária Baseada na Evidência (CEMDBE), Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal
| | - E J N L Silva
- Department of Endodontics, School of Dentistry, Grande Rio University (UNIGRANRIO), Rio de Janeiro, Rio de Janeiro, Brazil.,Department of Endodontics, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - D Marques
- Centro de Estudo de Medicina Dentária Baseada na Evidência (CEMDBE), Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal.,LIBPhys-FCT UID/FIS/04559/2013, Lisboa, Portugal
| | - F Belladonna
- Department of Endodontics, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - M Simões-Carvalho
- Department of Endodontics, Fluminense Federal University, Niteroi, Rio de Janeiro, Brazil
| | - E Camacho
- CENIMAT/I3N, Department of Materials Science, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - F M Braz Fernandes
- CENIMAT/I3N, Department of Materials Science, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
| | - M A Versiani
- Dental Specialty Center, Brazilian Military Police, Minas Gerais, Brazil
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Santos D, Bombonati GR, Marques D, Vilela MFG, Silva EM. Street Medical Consultation: health access of the Homeless People and intersectoral articulation. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.803] [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: 11/14/2022] Open
Abstract
Abstract
Background
The Homeless People is marked by serious social vulnerability, related to the absence of human dignity. Requirements of personal and residential documents, reception and inadequate approaches are barriers to access these people. The creation of Street Medical Consultation (CnaR), based on the logic of harm reduction in association with the other services, is a strategy that seeks to expand access to the services of the Public Healthcare System (SUS) in Brazil. The research aimed to analyze the characteristics and vulnerabilities of this population, the performance of CnaR and its articulation with services from the health care and the social assistance care network.
Methods
Study of a qualitative approach using 8 semi-structured interviews and the Thematic Content Analysis method. The study scenario was the CnaR multiprofissional team in a city in the interior of São Paulo.
Results
Three categories were found: (1) Population in Street Situation - complexity of those who live on the street: prejudices, violence and barriers in society and health institutions constitute a process of invisibility. (2) CnaR's work in the perspective of harm reduction: it is organized to meet the clinical and alcohol and other drugs demands through fixed fields, mobile fields and team meeting. (3) Beyond CnaR - network relationships: bringing dynamics to relationships, being strengthened or weakened. Ignorance of the service and their performance also generates CnaR invisibility process. The strategies developed include coping, dialogue, building partnerships and the process of visibility and fighting for the rights of the Homeless Persons.
Conclusions
CnaR finds itself as an insufficient service to meet all the demands of this vulnerable population in isolation, needing the network to expand access to health and other goods. It is necessary to combat prejudice against this population among health professionals and develop more efficient intersectoral articulation.
Key messages
The Homeless People have serious vulnerability and need humanization, guaranteeing equity in assistance in all sectors of society, especially the health care and the social assistance. The Street Medical Consultation faces performance difficulties to guarantee access to the Homeless People within the intersectoral network, often being the sole responsible for this population.
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Affiliation(s)
- D Santos
- Faculdade de Enfermagem, Unicamp, Campinas, Brazil
| | | | - D Marques
- Faculdade de Enfermagem, Unicamp, Campinas, Brazil
| | - M F G Vilela
- Faculdade de Enfermagem, Unicamp, Campinas, Brazil
| | - E M Silva
- Faculdade de Enfermagem, Unicamp, Campinas, Brazil
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Simpson CR, Robertson C, Vasileiou E, McMenamin J, Gunson R, Ritchie LD, Woolhouse M, Morrice L, Kelly D, Stagg HR, Marques D, Murray J, Sheikh A. Early Pandemic Evaluation and Enhanced Surveillance of COVID-19 (EAVE II): protocol for an observational study using linked Scottish national data. BMJ Open 2020; 10:e039097. [PMID: 32565483 PMCID: PMC7311023 DOI: 10.1136/bmjopen-2020-039097] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
INTRODUCTION Following the emergence of the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in December 2019 and the ensuing COVID-19 pandemic, population-level surveillance and rapid assessment of the effectiveness of existing or new therapeutic or preventive interventions are required to ensure that interventions are targeted to those at highest risk of serious illness or death from COVID-19. We aim to repurpose and expand an existing pandemic reporting platform to determine the attack rate of SARS-CoV-2, the uptake and effectiveness of any new pandemic vaccine (once available) and any protective effect conferred by existing or new antimicrobial drugs and other therapies. METHODS AND ANALYSIS A prospective observational cohort will be used to monitor daily/weekly the progress of the COVID-19 epidemic and to evaluate the effectiveness of therapeutic interventions in approximately 5.4 million individuals registered in general practices across Scotland. A national linked dataset of patient-level primary care data, out-of-hours, hospitalisation, mortality and laboratory data will be assembled. The primary outcomes will measure association between: (A) laboratory confirmed SARS-CoV-2 infection, morbidity and mortality, and demographic, socioeconomic and clinical population characteristics; and (B) healthcare burden of COVID-19 and demographic, socioeconomic and clinical population characteristics. The secondary outcomes will estimate: (A) the uptake (for vaccines only); (B) effectiveness; and (C) safety of new or existing therapies, vaccines and antimicrobials against SARS-CoV-2 infection. The association between population characteristics and primary outcomes will be assessed via multivariate logistic regression models. The effectiveness of therapies, vaccines and antimicrobials will be assessed from time-dependent Cox models or Poisson regression models. Self-controlled study designs will be explored to estimate the risk of therapeutic and prophylactic-related adverse events. ETHICS AND DISSEMINATION We obtained approval from the National Research Ethics Service Committee, Southeast Scotland 02. The study findings will be presented at international conferences and published in peer-reviewed journals.
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Affiliation(s)
- Colin R Simpson
- Wellington School of Health, Faculty of Health, Victoria University of Wellington, Wellington, New Zealand
- Usher Institute, The University of Edinburgh, Edinburgh, UK
| | - Chris Robertson
- Department of Mathematics and Statistics, University of Strathclyde, Glasgow, UK
- Public Health Scotland, Glasgow, UK
| | | | | | - Rory Gunson
- West Of Scotland Specialist Virology Centre, Glasgow, UK
| | - Lewis D Ritchie
- Centre of Academic Primary Care, University of Aberdeen, Aberdeen, UK
| | - Mark Woolhouse
- Usher Institute, The University of Edinburgh, Edinburgh, UK
| | - Lynn Morrice
- Usher Institute, The University of Edinburgh, Edinburgh, UK
| | - Dave Kelly
- The Centre for Health Science, Albasoft Ltd, Inverness, UK
| | - Helen R Stagg
- Usher Institute, The University of Edinburgh, Edinburgh, UK
| | | | | | - Aziz Sheikh
- Usher Institute, The University of Edinburgh, Edinburgh, UK
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Freitas F, Braz D, Pereira R, Sousa D, Marques D, Caramês J, Mata A. Validation of a Portuguese version of the Groningen radiotherapy-induced xerostomia questionnaire. Med Oral Patol Oral Cir Bucal 2020; 27:e525-e531. [PMID: 36173719 PMCID: PMC9648646 DOI: 10.4317/medoral.25428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 08/31/2022] [Indexed: 12/03/2022] Open
Abstract
Background The aim of this study was to validate and determine at pretest level the reliability of the Portuguese version of the Groningen radiotherapy-induced xerostomia questionnaire. Material and Methods This study employed 37 head and neck cancer patients. Each patient signed an informed consent and responded to the Portuguese version of the questionnaire in the form of an interview. This was repeated again after 2 weeks. A standard single question provided a validity check. Data were analyzed using Cronbach’s α to test its reliability and total and interitem correlation, and intraclass correlation to determine its internal consistency and test-retest reliability. Construct validity supported by objective measurements as salivary secretion was also investigated. Significance was set at .05. Results Cronbach’s α was 0.91 and 0.89 for the first and second test administrations, respectively, which indicates that the internal consistency was excellent. The intraclass correlation coefficient value for the test-retest reliability was 0.70. The correlation between the total score of the questionnaire and standard single dry mouth question was 0.72 for the first round, indicating a good correlation. Conclusions Demonstrating very good psychometric properties, the Portuguese version of the Groningen radiotherapy-induced xerostomia questionnaire is a valid tool and can be considered a reliable instrument to measure xerostomia in head and neck cancer patients. Key words:Xerostomia, quality of life, xerostomia questionnaire, transcultural validation, head and neck cancer, radiotherapy, saliva.
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Clemente V, Allen-Gomes A, Tavares D, Azevedo C, Marques D, Serra J. How severe insomnia is (as measured by the insomnia severity index) depending on whether patients are using versus not using sleeping medication? Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.030] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Martins JNR, Marques D, Silva EJNL, Caramês J, Mata A, Versiani MA. Prevalence of C‐shaped canal morphology using cone beam computed tomography – a systematic review with meta‐analysis. Int Endod J 2019; 52:1556-1572. [DOI: 10.1111/iej.13169] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 06/13/2019] [Indexed: 11/29/2022]
Affiliation(s)
- J. N. R. Martins
- Faculdade de Medicina Dentária Universidade de Lisboa Lisboa
- Instituto de Implantologia LisboaPortugal
| | - D. Marques
- Faculdade de Medicina Dentária Universidade de Lisboa Lisboa
- Instituto de Implantologia LisboaPortugal
- LIBPhys‐FCT UID/FIS/04559/2013 Lisboa Portugal
| | - E. J. N. L. Silva
- Department of Endodontics School of Dentistry Grande Rio University Rio de JaneiroBrazil
| | - J. Caramês
- Faculdade de Medicina Dentária Universidade de Lisboa Lisboa
- Instituto de Implantologia LisboaPortugal
- LIBPhys‐FCT UID/FIS/04559/2013 Lisboa Portugal
| | - A. Mata
- Faculdade de Medicina Dentária Universidade de Lisboa Lisboa
- LIBPhys‐FCT UID/FIS/04559/2013 Lisboa Portugal
| | - M. A. Versiani
- Dental Specialty Center Brazilian Military Police Minas Gerais Brazil
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Sales C, Julião I, Rosinha A, Marques D, Carneiro F, Faustino C, Machado M, Ferreira P, Fragoso M, Sousa N. Effectiveness of TAS-102 in patients with metastatic colorectal cancer in a single comprehensive cancer center. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.278] [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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Martins JNR, Ordinola-Zapata R, Marques D, Francisco H, Caramês J. Differences in root canal system configuration in human permanent teeth within different age groups. Int Endod J 2018; 51:931-941. [DOI: 10.1111/iej.12896] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 01/18/2018] [Indexed: 11/30/2022]
Affiliation(s)
- J. N. R. Martins
- Endodontics Department; Faculdade de Medicina Dentária; Instituto de Implantologia; Universidade de Lisboa; Lisboa Portugal
| | - R. Ordinola-Zapata
- Bender Division of Endodontics; Albert Einstein Medical Center; Philadelphia PA USA
| | - D. Marques
- Anatomy and Physiology Department; Faculdade de Medicina Dentária; LIBPhys-FCT UID/FIS/04559/2013; Instituto de Implantologia; Universidade de Lisboa; Lisboa Portugal
| | - H. Francisco
- Oral Surgery Department; Faculdade de Medicina Dentária; LIBPhys-FCT UID/FIS/04559/2013; Instituto de Implantologia; Universidade de Lisboa; Lisboa Portugal
| | - J. Caramês
- Oral Surgery Department; Faculdade de Medicina Dentária; LIBPhys-FCT UID/FIS/04559/2013; Instituto de Implantologia; Universidade de Lisboa; Lisboa Portugal
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García I, Zurita K, Bohner L, Gamba D, Pannuti C, Roberta K, Marques D, Neto P. Virtual articulator accuracy in determination of occlusal contacts. Dent Mater 2018. [DOI: 10.1016/j.dental.2018.08.113] [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: 10/28/2022]
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Tenorio-Lopes L, Henry MS, Marques D, Tremblay MÈ, Drolet G, Bretzner F, Kinkead R. Neonatal maternal separation opposes the facilitatory effect of castration on the respiratory response to hypercapnia of the adult male rat: Evidence for the involvement of the medial amygdala. J Neuroendocrinol 2017; 29. [PMID: 29063642 DOI: 10.1111/jne.12550] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 10/10/2017] [Accepted: 10/11/2017] [Indexed: 01/09/2023]
Abstract
Respiratory manifestations of panic disorder (PD) include a greater respiratory instability and enhanced responsiveness to CO2 compared to normal individuals. Although the prevalence of PD is approximately three times greater in women compared to men, the origins of this sexual dimorphism remain poorly understood. Similar to PD patients, adult female rats previously subjected to neonatal maternal separation (NMS) show an increase in their ventilatory response to CO2 . Because this effect of NMS is not observed in males, we hypothesised that testosterone prevents NMS-induced hyper-responsiveness to CO2 . Pups subjected to NMS were placed in an incubator for 3 h d-1 from postnatal days 3-12. Control pups remained undisturbed. At adulthood (8-10 weeks of age), rats were then subjected either to sham surgery or castration. Fourteen days later, breathing was measured at rest (room air) and during acute exposure to hypercapnia (5 and 10% CO2 for 10 minutes each) using plethysmography. To gain insight into the mechanisms involved, c-fos expression was used as an indicator of neuronal activation. Brains were collected following air or CO2 exposure for quantification of c-fos positive cells by immunohistochemistry in selected regions, including the paraventricular nucleus of the hypothalamus, the dorsomedial hypothalamus and the amygdalar complex. Castration produced a 100% increase of hyperventilatory response to 10% CO2 in control rats. Unexpectedly, castration had no effect on the hyperventilatory response of NMS rats. The intensity of the hypercapnic response was inversely correlated with c-fos expression in the medial amygdala. We conclude that testosterone prevents the hyper-responsiveness to CO2 , whereas NMS attenuates sensitivity to hormone withdrawal. We propose that an inhibitory influence from the medial amygdala contributes to this effect.
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Affiliation(s)
- L Tenorio-Lopes
- Department of Pediatrics, Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, Université Laval, Québec, QC, Canada
| | - M S Henry
- Department of Molecular Medicine, Centre de Recherche du CHU de Québec-Université Laval, Axe Neurosciences, Université Laval, Québec, QC, Canada
| | - D Marques
- Departamento de Morfologia e Fisiologia Animal Fac. de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, Jaboticabal, Brazil
| | - M-È Tremblay
- Department of Molecular Medicine, Centre de Recherche du CHU de Québec-Université Laval, Axe Neurosciences, Université Laval, Québec, QC, Canada
| | - G Drolet
- Department of Molecular Medicine, Centre de Recherche du CHU de Québec-Université Laval, Axe Neurosciences, Université Laval, Québec, QC, Canada
| | - F Bretzner
- Department of Molecular Medicine, Centre de Recherche du CHU de Québec-Université Laval, Axe Neurosciences, Université Laval, Québec, QC, Canada
| | - R Kinkead
- Department of Pediatrics, Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, Université Laval, Québec, QC, Canada
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Martins JNR, Marques D, Mata A, Caramês J. Root and root canal morphology of the permanent dentition in a Caucasian population: a cone-beam computed tomography study. Int Endod J 2017; 50:1013-1026. [DOI: 10.1111/iej.12724] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 11/21/2016] [Indexed: 10/20/2022]
Affiliation(s)
- J. N. R. Martins
- Department of Endodontics; Faculdade de Medicina Dentária; Universidade de Lisboa; Lisboa
- Implantology Institute; Lisboa
| | - D. Marques
- Implantology Institute; Lisboa
- Department of Anatomy and Physiology; Faculdade de Medicina Dentária; Universidade de Lisboa; Lisboa
- LIBPhys-FCT UID/FIS/04559/2013; Lisboa
| | - A. Mata
- LIBPhys-FCT UID/FIS/04559/2013; Lisboa
- Department of Oral Biology; Faculdade de Medicina Dentária; Universidade de Lisboa; Lisboa
| | - J. Caramês
- Implantology Institute; Lisboa
- LIBPhys-FCT UID/FIS/04559/2013; Lisboa
- Oral Surgery Department; Faculdade de Medicina Dentária; Universidade de Lisboa; Lisboa Portugal
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Sanches C, Marques D, Amaral J, Mendonca C, Mata A. Polimedicated institutionalized elderly, prevalence of hyposalivation- quality of life and oral health. J Clin Exp Dent 2017. [DOI: 10.4317/medoral.176438727] [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: 11/05/2022] Open
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26
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Corzo P, Pros A, Polino L, Marques D, Balcells E. FRI0295 DLCO /VA: A Possible Predictor of Pulmonary Vascular Disease in Systemic Sclerosis:. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4023] [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: 11/03/2022]
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Salamanca P, Magalhães H, Carneiro F, Marques D, Faustino C, Sousa N, Machado M, Ferreira P, Raimundo A, Fragoso M, Lara Santos L, Pereira D. P-175 Effectiveness of sorafenib in the treatment of hepatocellular carcinoma. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.169] [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: 11/12/2022] Open
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Costa-Ribeiro A, Maux A, Bosford T, Tenório Y, Marques D, Carneiro M, Nitsche M, Filho A, Monte-Silva K. Dopamine-independent effects of combining transcranial direct current stimulation with cued gait training on cortical excitability and functional mobility in Parkinson’s disease. J Rehabil Med 2016; 48:819-823. [DOI: 10.2340/16501977-2134] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Pebody R, Warburton F, Andrews N, Ellis J, von Wissmann B, Robertson C, Yonova I, Cottrell S, Gallagher N, Green H, Thompson C, Galiano M, Marques D, Gunson R, Reynolds A, Moore C, Mullett D, Pathirannehelage S, Donati M, Johnston J, de Lusignan S, McMenamin J, Zambon M. Effectiveness of seasonal influenza vaccine in preventing laboratory-confirmed influenza in primary care in the United Kingdom: 2014/15 end of season results. Euro Surveill 2015; 20:30013. [DOI: 10.2807/1560-7917.es.2015.20.36.30013] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 08/31/2015] [Indexed: 01/01/2023] Open
Abstract
The 2014/15 influenza season in the United Kingdom (UK) was characterised by circulation of predominantly antigenically and genetically drifted influenza A(H3N2) and B viruses. A universal paediatric influenza vaccination programme using a quadrivalent live attenuated influenza vaccine (LAIV) has recently been introduced in the UK. This study aims to measure the end-of-season influenza vaccine effectiveness (VE), including for LAIV, using the test negative case–control design. The overall adjusted VE against all influenza was 34.3% (95% confidence interval (CI) 17.8 to 47.5); for A(H3N2) 29.3% (95% CI: 8.6 to 45.3) and for B 46.3% (95% CI: 13.9 to 66.5). For those aged under 18 years, influenza A(H3N2) LAIV VE was 35% (95% CI: −29.9 to 67.5), whereas for influenza B the LAIV VE was 100% (95% CI:17.0 to 100.0). Although the VE against influenza A(H3N2) infection was low, there was still evidence of significant protection, together with moderate, significant protection against drifted circulating influenza B viruses. LAIV provided non-significant positive protection against influenza A, with significant protection against B. Further work to assess the population impact of the vaccine programme across the UK is underway.
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Affiliation(s)
| | | | | | | | | | | | - Ivelina Yonova
- RCGP Research and Surveillance Centre, England, United Kingdom
- University of Surrey, England, United Kingdom
| | | | - Naomh Gallagher
- Public Health Agency Northern Ireland, Northern Ireland, United Kingdom
| | - Helen Green
- Public Health England, England, United Kingdom
| | | | | | - Diogo Marques
- Health Protection Scotland, Scotland, United Kingdom
| | - Rory Gunson
- Health Protection Scotland, Scotland, United Kingdom
| | | | | | - David Mullett
- RCGP Research and Surveillance Centre, England, United Kingdom
- University of Surrey, England, United Kingdom
| | - Sameera Pathirannehelage
- RCGP Research and Surveillance Centre, England, United Kingdom
- University of Surrey, England, United Kingdom
| | | | - Jillian Johnston
- Public Health Agency Northern Ireland, Northern Ireland, United Kingdom
| | - Simon de Lusignan
- RCGP Research and Surveillance Centre, England, United Kingdom
- University of Surrey, England, United Kingdom
| | - Jim McMenamin
- Health Protection Scotland, Scotland, United Kingdom
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Silva M, Pereira F, Guerreiro I, Afonso A, Alves S, Dias J, Marques D, Mergulhão P. 1043 Resistance patterns of microbial isolates in cancer patients with infection in the emergency department and impact on outcome. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30469-5] [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: 11/24/2022]
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Magalhães H, Cassiano Neves M, Fontes e Sousa M, Machado M, Marques D, Faustino C, Sousa N, Ferreira P, Raimundo A, Fragoso M, Luis M, Sales C. P-178 First-line chemotherapy with gemcitabine in advanced pancreatic cancer: a retrospective single-center analysis. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.178] [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: 11/15/2022] Open
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Marques D, Lisbona M, Orpinell L, Solano A, Ares J, Almirall M, Salman-Monte T, Maymo J. FRI0582 Could MRI of the Hand Improve the Accuracy of the 2010 ACR/EULAR Criteria for Rheumatoid Arthritis?:. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3940] [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: 11/03/2022]
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Marques D, Gomes AA, Meiavia A, Salgueiro A, Ribeiro CC, Dischler J. Reliability and initial validation of the Pittsburgh Sleep Quality Index, European Portuguese version: A preliminary study in a sample of higher education students. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.316] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Meiavia A, Marques D, Gomes AA. Quality of sleep and quality of life in higher education students. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.317] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Silva Neto HF, SILVA JDR, Tasso Junior LC, Marques D, Marques MO. DINÂMICA DOS ATRIBUTOS QUÍMICOS DO SOLO AO LONGO DA SAFRA 2008/2009, PARA SEIS CULTIVARES DE CANA-DE-AÇÚCAR. Nucleus 2011. [DOI: 10.3738/1982.2278.547] [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: 11/12/2022] Open
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Assis J, Gomes M, Marques D, Marques I, Catarino R, Pereira D, Medeiros R. 1152 POSTER CYP3A4*1B Polymorphism – a Prognostic Value in Ovarian Cancer? Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70795-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Silva Pinto C, Fidalgo T, Salvado R, Marques D, Gonçalves E, Martinho P, Markoff A, Martins N, Letícia Ribeiro M. Molecular diagnosis of haemophilia A at Centro Hospitalar de Coimbra in Portugal: study of 103 families--15 new mutations. Haemophilia 2011; 18:129-38. [PMID: 21645180 DOI: 10.1111/j.1365-2516.2011.02570.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Haemophilia A (HA), the most commonly inherited bleeding disorder, has well known phenotype heterogeneity, influenced by the type of mutation, modulating factors and development of inhibitors. Nowadays, new technologies in association with bioinformatics tools allow a better genotype/phenotype correlation. With the main objective of identifying familial carrier women and to offer prenatal diagnosis, 141 HA patients belonging to 103 families, followed or referred to the Haemophilia Centre of CHC, E.P.E., were studied. Molecular diagnosis strategy was based on HA severity: IVS22 and IVS1 inversions, direct sequencing and MLPA technique. New missense and splicing mutations were further analyzed using molecular modelling. Genotype/phenotype correlation was assessed taking into account the known modulating factors. During this study, mutations were detected in 102/103 families, carrier status was determined in 83 women and 14 prenatal diagnoses were performed. In a total of 46 different mutations identified, 15 have not been reported previously by the HAMSTeRS and HGMD. Genotype/phenotype correlation revealed two cases with a clinical picture less severe than expected by the type of mutation identified. Six patients developed inhibitors: five severe (IVS22, IVS1, large deletion) and one mild (p. Gln2265Lys). The adopted strategy allowed the identification of 99% of the molecular alterations underlying the HA phenotype (98% detection rate for severe and 100% for moderate and mild). Evaluation of genotype-phenotype correlation was complemented with structural protein modelling of newly identified missense mutations, contributing to better understanding of the disease-causing mechanisms and to deepening knowledge on protein structure-function.
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Affiliation(s)
- C Silva Pinto
- Centro Hospitalar de Coimbra, EPE, Hematologia, Coimbra, Portugal
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Passalacqua S, Staffolani E, Brescia P, Loschiavo C, Mancini E, Monaci G, Russo GE, Ramunni A, Granger Vallee A, Chenine L, Leray-Moragues H, Gontier-Picard A, Rodriguez A, Chalabi L, Canaud B, Lantz B, Kapke A, Pearson J, Vanholder R, Tomo T, Robinson B, Port F, Daugirdas J, Ramirez S, Akonur A, Agar BU, Culleton BF, Gellens ME, Leypoldt JK, Agar BU, Troidle L, Finkelstein FO, Kohn OF, Akonur A, Leypoldt JK, Basile C, Libutti P, Di Turo AL, Casucci F, Losurdo N, Teutonico A, Vernaglione L, Lomonte C, Basile C, Libutti P, Vernaglione L, Casucci F, Losurdo N, Teutonico A, Lomonte C, Umimoto K, Nata Y, Shimamoto Y, Miyata M, Krisp C, Gmerek A, Wagner J, Wolters D, Pedrini LA, Kopec J, Sulowicz W, Falkenhagen D, Thijssen S, Brandl M, Hartmann J, Strobl K, Wallner M, Mahieu E, Verhamme P, Op De Beeck K, Kuypers D, Claes K, Vitale C, Bagnis C, Berutti S, Soragna G, Gabella P, Fruttero C, Marangella M, Khadzhynov D, Baumann C, Lieker I, Slowinski T, Neumayer HH, Peters H, Bibiano L, Freddi P, Ricciatti A, Sagripanti S, Manarini G, Frasca GM, Hwang KS, Park JS, Lee CH, Kang CM, Kim GH, Urabe S, Kokubo K, Tsukao H, Shimbo T, Hirose M, Kobayashi H, Itoh Y, Kikuchi K, Murakami K, Tsuruta Y, Niwa T, Masakane I, Esashi S, Igarashi H, Djogan M, Boltina I, Dudar I, Pastori G, Favaro E, Ferraro A, Marcon R, Guizzo M, Lazzarin R, Conte F, Nichelatti M, Limido A, Zhu F, Liu L, Kaysen GA, Abbas SR, Kotanko P, Levin NW, Debska-Slizien A, Malgorzewicz S, Dudziak M, Rutkowski B, Svojanovsky J, Dob ak P, Nedbalkova M, Reichertova A, Soucek M, Kirmizis D, Kougioumtzidou O, Vakianis P, Papagianni A, Mancini E, Sestigiani E, Gissara Z, Palladino G, Santoro A, Schneditz D, Stockinger J, Ribitsch W, Branco P, Figueiredo S, Santana S, Rocha C, Carvalho L, Borges S, Marques D, Barata D, Tomo T, Matsuyama M, Matsuyama K, Matsuyama I, Minakuchi J, Schiffl H, Fischer R, Lang S, de los Santos CA, Antonello IC, Poli-de-Figueiredo CE, d'Avila D, Abbas SR, Zhu F, Liu L, Rosales L, Ulloa D, Carter M, Kotanko P, Levin NW, Murakami K, Kokubo K, Tsukao H, Shimbo T, Hirose M, Kobayashi H, Kokubo K, Umehara S, Tsukao H, Shimbo T, Hirose M, Sakai K, Kobayashi H, Krieter DH, Seidel S, Merget K, Lemke HD, Morgenroth A, Wanner C, Onogi T, Nishida Y, Ueno J, Taoka M, Sato T, Sakurai K, Saito T, Yamauchi F, Asahi D, Hosoya H, Maruyama N, Suzuki A, Kokubo K, Alain R, Christian D, Romano JM, Printz J, Philippe B, Micha T, Hadjiyannakos D, Pani I, Sonikian M, Karatzas I, Vlassopoulos D, Kanaki A, Caprioli R, Lippi A, Donadio C, Malliekal S, Kubey W, Bernardo AA, Canaud B, Katzarski K, Galach M, Waniewski J, Sambale S, Reising A, Donnerstag F, Hafer C, Schmidt B, Kielstein JT, Ervo R, Angeletti S, Turrini Dertenois L, Cavatorta F, Gondouin B, Bevins A, Cockwell P, Hutchison CA, Doria M, Genovesi S, Biagi F, Grandi F, Frontini A, Stella A, Santoro A, Cases A, Fort J, Maduell F, Comas J, Arcos E, Deulofeu R, Rroji (Molla) M, Seferi S, Barbullushi M, Spahia N, Likaj E, Thereska N, Morena M, Rodriguez A, Jaussent I, Chenine L, Bargnoux AS, Dupuy AM, Leray-Moragues H, Cristol JP, Canaud B, Gondouin B, Hutchison CA, Hammer F, Scherberich JE, Pizzarelli F, Ferro G, Amidone M, Dattolo P, Gauly A, Golla P, Hafer C, Clajus C, Beutel G, Haller H, Schmidt BMW, Kielstein J, Nakazawa R, Shimizu Y, Uemura Y, Kashiwabara H, Watanabe D, Kato T, Fuse M, Azuma N, Nakanishi N, Kabayama S, Alquist Hegbrant M, Bosch JP, Righetti M, Ferrario G, Serbelloni P, Milani S, Lisi L, Tommasi A, Leypoldt JK, Agar BU, Akonur A, Gellens ME, Culleton BF, Santoro A, Mancini E, Mambelli E, Bolasco PG, Scotto P, Savoldi S, Serra A, Limido A, Corazza L, Sakurai K, Saito T, Yamauchi F, Asahi D, Hosoya H, Tomisawa N, Jinbo Y, Umimoto K, Shimamoto Y, Kobayashi Y, Miyata M, Tsukao H, Kokubo K, Kawakubo Y, Sakurasawa T, Shimbo T, Hirose M, Kobayashi H. Extracorporeal dialysis: techniques and adequacy. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.37] [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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Silva JDRD, Silva Neto HFD, Tasso Júnior LC, Marques D, Marques MO. TEORES DE ACIDEZ NO CALDO DE CULTIVARES TARDIOS DE CANA-DE-AÇÚCAR. Nucleus 2011. [DOI: 10.3738/1982.2278.538] [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: 11/12/2022] Open
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Sousa M, Rodrigues A, Oliveira J, Ferreira A, Marques D, Sousa B, Sousa S, Carvalho L, Afonso N, Pereira D. 8065 Endometrial clear cell adenocarcinoma – a retrospective analysis. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71587-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Hall EA, Ren S, Hylemon PB, Rodriguez-Agudo D, Redford K, Marques D, Kang D, Gil G, Pandak WM. Detection of the steroidogenic acute regulatory protein, StAR, in human liver cells. Biochim Biophys Acta Mol Cell Biol Lipids 2005; 1733:111-9. [PMID: 15863358 DOI: 10.1016/j.bbalip.2005.01.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2004] [Revised: 12/16/2004] [Accepted: 01/20/2005] [Indexed: 11/30/2022]
Abstract
Overexpressing StAR (a mitochondrial cholesterol transporter) increases (>5-fold) the rate of 27-hydroxylation of cholesterol and the rates of bile acid synthesis in primary rat hepatocytes; suggesting that the transport of cholesterol into mitochondria is rate-limiting for bile acid biosynthesis via the CYP27A1 initiated 'acidic' pathway. Our objective was to determine the level of StAR expression in human liver and whether changes in StAR would correlate with changes in CYP27A1 activity/bile acid synthesis rates in human liver tissues. StAR mRNA and protein were detected in primary human hepatocytes and HepG2 cells by RT-PCR/Northern analysis and by Western analysis, respectively. In immunocompetition assays, liver StAR was competed away with the addition of purified human adrenal StAR. Overexpressing CYP27A1 in both cell types led to >2-fold increases in liver StAR concentration. StAR protein levels also increased approximately 2-fold with the addition of 27-hydroxycholesterol to HepG2 cell culture medium. Overexpressing StAR increased the rates of 27-hydroxylation of cholesterol/bile acid synthesis in both cell lines and increased intracellular levels of 27-hydroxycholesterol. In conclusion, human liver cells contain regulable StAR protein whose level of expression appears capable of regulating cellular cholesterol homeostasis, representing a potential therapeutic target in the management of hyperlipidemia.
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Affiliation(s)
- E A Hall
- Department of Medicine, Veterans Affairs Medical Center and Virginia Commonwealth University, Richmond, USA
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Suda Y, Mori K, Bird K, Marques D, Ormsby J, Tanaka S, Koshida S, Nakamura M, Kusumoto S, Sobel M. A novel crosslinking reagent and its application for the detection and isolation of heparin-binding protein(s) on the platelet surface. J Biochem 1999; 125:1011-5. [PMID: 10348900 DOI: 10.1093/oxfordjournals.jbchem.a022379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A new hetero-bifunctional photo crosslinking reagent, 2-(4-azidoanilyl)-4-(4-azabicyclo-[2,2, 2]hexylammonio)-6-morpholino-1,3,5-triazine chloride, was designed to detect and isolate heparin-binding protein(s) that may act as heparin-receptor(s) on the platelet surface. In a preliminary study using ethanol as a model substrate, the reagent was shown to react with the alcoholic hydroxy group under mild conditions and its crosslinking photoreactivity was high. The reagent effectively formed similar covalent bonds with heparin, while preserving its anticoagulant anti-Xa activity. [3H]Heparin labeled with this reagent crosslinked to antithrombin III very specifically but not to ovalbumin, as analyzed by the Bio-imaging Analyzer System (BAS, Fuji Photo Film, Tokyo). Affinity crosslinking of [3H]heparin was then used to detect heparin-binding proteins on the surface of intact platelets. Several discrete protein bands were detected by the BAS-imaging of SDS-PAGE.
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Affiliation(s)
- Y Suda
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan.
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Maia H, Calmon LC, Marques D, Coelho JC, Oliveira M, Coutinho EM. Polypectomy and endometrial resection in postmenopausal patients. J Am Assoc Gynecol Laparosc 1997; 4:577-82. [PMID: 9348364 DOI: 10.1016/s1074-3804(05)80091-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
STUDY OBJECTIVE To evaluate the therapeutic efficacy of polypectomy associated with endometrial resection for the treatment of polyps in postmenopausal women. DESIGN Prospective study (Canadian Task Force classification II-2). SETTING Private urban hospital with facilities for endoscopic surgery. PATIENTS Sixty-six women with endometrial polyps. INTERVENTIONS Sixty-four of the 66 patients underwent polypectomy followed by endometrial resection. One patient had hysterectomy because endometrial biopsy showed serous papillary carcinoma. MEASUREMENTS AND MAIN RESULTS No major complications were associated with the procedure. Histopathology showed hyperplasia in most polyps. One patient had a papillary uterine carcinoma in the polyp that was not detected by preoperative endometrial biopsy. The women were followed with transvaginal sonography for 1 year after surgery. CONCLUSION Polypectomy followed by endometrial resection is a very low-risk procedure for postmenopausal patients. There was no recurrence after the first year in women who completed follow-up.
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Affiliation(s)
- H Maia
- Endoscopy Unit, CePARH, Rua Caetano Moura, 35, Federacao, Salvador, 40210-341 Bahia, Brazil
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Poletti LF, Bird K, Harris RB, Marques D, Sobel M. Prevention of arterial thrombosis using a novel heparin with enhanced antiplatelet activity and reduced anticoagulant activity. J Vasc Surg 1997; 26:366-72. [PMID: 9308582 DOI: 10.1016/s0741-5214(97)70029-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE Thrombosis after arterial injury is often initiated by von Willebrand factor (vWF)-dependent platelet accumulation. A promising antithrombotic strategy is the interruption of platelet/vWF interactions. Previously, we demonstrated how chemical and affinity modification can enhance heparin's anti-vWF activity while reducing conventional anticoagulation. Here, we investigated whether a modified heparin can block platelet-dominated arterial thrombosis. METHODS Standard heparin was oxidized with periodate, refined to have high vWF affinity and inhibitory potency, and tested in a guinea pig model of platelet-dependent arterial thrombosis. In this model, a controlled mechanical arterial injury yields cyclic flow variations (CFVs) caused by recurrent accumulation of platelet thrombi. RESULTS All six control animals developed CFVs (mean, 10.4 +/- 2.6 CFVs), and six of seven animals treated with standard heparin also developed CFVs (mean, 7.6 +/- 4.6). Only one of six animals treated with the anti-vWF heparin and one of six treated with AJvW-2 (an anti-vWF antibody) developed CFVs (mean, 2.0 +/- 4.9 and 0.5 +/- 1.2, respectively). Thus both the modified heparin and AJvW-2 were more effective than standard heparin (p < 0.03). Bleeding times and platelet counts were unaffected. A modified activated partial thromboplastin time was less prolonged by the modified high-affinity heparin (91 +/- 17) seconds) than by standard heparin (144 +/- 30 seconds; p < 0.01). CONCLUSIONS The modified heparin with high vWF affinity was a more effective arterial antithrombotic agent, with fewer conventional anticoagulant effects than standard heparin. Interruption of the vWF/platelet interaction is a promising antithrombotic strategy that may be met by novel heparin-based antithrombotic drugs.
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Affiliation(s)
- L F Poletti
- Division of Vascular Surgery, Medical College of Virginia, Virginia Commonwealth University, Richmond, USA
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Poletti LF, Bird KE, Marques D, Harris RB, Suda Y, Sobel M. Structural aspects of heparin responsible for interactions with von Willebrand factor. Arterioscler Thromb Vasc Biol 1997; 17:925-31. [PMID: 9157957 DOI: 10.1161/01.atv.17.5.925] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Unfractionated heparin (UFH) binds von Willebrand factor (vWF) and inhibits the vWF-platelet GP Ib interaction. For vWF, a heparin-binding domain has been identified, but for heparin, the structures that confer such activity are unknown. To investigate this, UFH was depolymerized by methods that yield structurally distinct fragments. The glycosaminoglycans (GAGs) produced were separated into five groups of homogeneous molecular weight (MW). Anti-Xa activity, vWF binding affinity, and vWF-dependent platelet agglutination were measured. Periodate oxidation but not heparinase digestion destroyed anti-Xa activity. At all MWs, periodate conferred greater vWF binding affinity and greater ability to inhibit platelet agglutination than heparinase. As an example, at MW 6100, the binding IC50 was 100+/-19 micromol/L for a periodate-derived GAG and 527+/-70 micromol/L for a heparinase-derived GAG. At the same MW, the agglutination IC50 was 17+/-5 micromol/L for periodate and 135+/-18 micromol/L for heparinase. This suggests that the disaccharide GlcNS[6S]-IdoA2S, destroyed by heparinase but not periodate, is crucial to heparin-vWF interactions. An MW dependency was also noted, with a minimum dodecasaccharide required for activity inhibition. To further investigate the heparin/vWF interaction, affinity fractionation of heparins was performed with an immobilized peptide derived from a heparin-binding domain of vWF. Disaccharide analysis of high-affinity heparins revealed an increased ratio of IdoA2S-GlcN[S/Ac]6S to IdoA2S-GlcN[S/Ac]. Affinity fractionation of oligosaccharides (MW 3500) diminished the relative content of all disaccharides except IdoA2S-GlcNS6S, which was increased. These data suggest that the disaccharide structures IdoA2S-GlcNS6S and GlcNS6S-IdoA2S are crucial to heparin/vWF interactions. Understanding the structural aspects that confer such activity may be useful in designing heparin-based antithrombotic drugs.
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Affiliation(s)
- L F Poletti
- Division of Vascular Surgery, Medical College of Virginia, Virginia Commonwealth University, and H.H. McGuire Veterans Affairs Medical Center, Richmond 23298, USA
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Maia H, Calmon LC, Marques D, Coutinho EM. Administration of medroxyprogesterone acetate after endomyometrial resection. J Am Assoc Gynecol Laparosc 1997; 4:195-200. [PMID: 9057903 DOI: 10.1016/s1074-3804(97)80009-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
STUDY OBJECTIVE To assess the efficacy of endometrial resection for treatment of menorrhagia in women to whom no preoperative agent was given to prepare the endometrium. DESIGN Retrospective analysis of patients' records for all endometrial resections in which medroxyprogesterone acetate was used postoperatively. SETTING Hospital day surgery unit. PATIENTS Seventy patients with menorrhagia. INTERVENTIONS The women underwent transvaginal sonography, followed by hysteroscopy and endometrial biopsy. The endometrium was removed using the 27F resectoscope followed by coagulation with the rollerball. Medroxy-progesterone acetate was prescribed for 2 months after surgery. MEASUREMENTS AND MAIN RESULTS All women achieved a reduction in menstrual flow and 50% reported amenorrhea after endometrial resection. In only two was hysterectomy necessary due to recurrence of menorrhagia. CONCLUSION Preoperative endometrial preparation was unnecessary when endometrial resection was carried out for treatment of menorrhagia. However, the patients received medroxyprogesterone acetate postoperatively.
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Affiliation(s)
- H Maia
- Endoscopy Unit, CePARH, Bahia, Brazil
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Maia H, Barbosa IC, Marques D, Calmon LC, Ladipo OA, Coutinho EM. Hysteroscopy and transvaginal sonography in menopausal women receiving hormone replacement therapy. J Am Assoc Gynecol Laparosc 1996; 4:13-8. [PMID: 9132309 DOI: 10.1016/s1074-3804(96)80102-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
STUDY OBJECTIVE To evaluate the endometrial cavity of menopausal women with irregular bleeding while receiving hormone replacement therapy. DESIGN Comparative evaluation of hysteroscopic and biopsy findings. SETTING A center for reproductive studies. PATIENTS Forty-one patients receiving different regimens of hormone replacement therapy. INTERVENTIONS Hysteroscopy, endometrial biopsy, and transvaginal sonography were performed in all 41 women. In 10 patients, endometrial polyps were removed with the resectoscope. MEASUREMENTS AND MAIN RESULTS Irregular bleeding during hormone replacement therapy was associated with atrophic endometrium whenever transvaginal sonography showed endometrial thickness to be less than 4 mm. In patients who developed increased endometrial thickness after hormone replacement therapy, hysteroscopy revealed the presence of endometrial polyps in the uterine cavity. Histopathologic examination of excised polyps revealed cystic or adenomatous hyperplasia confined to these lesions. CONCLUSIONS Endometrial polyps can appear in menopausal women receiving hormone replacement therapy despite the presence of progestins to oppose the action of estrogens.
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Affiliation(s)
- H Maia
- Centro de Pesquisas e Assistencia em Reproducao Humana, Salvador, Bahia, Brazil
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Maia H, Marques D, Calmon Filho L, Coutinho E. F226 Management of endometrial polyps in menopause patients under HRT. Maturitas 1996. [DOI: 10.1016/s0378-5122(97)81189-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
BACKGROUND Platelet interactions with the injured vessel wall may contribute significantly to the early and late failures of many cardiovascular interventions; the adhesive protein von Willebrand factor (vWF) is thought to play an important role. Previously, we demonstrated that heparin interfered with platelet/vWF hemostatic mechanisms by binding to vWF within the proteins's domain responsible for binding the platelet vWF receptor, glycoprotein Ib. The purpose of the present study was to develop and refine heparins with greater potency to inhibit platelet/vWF interactions. METHODS AND RESULTS Immobilized synthetic peptides based on a known heparin-binding domain of vWF were used to yield novel fractions of standard heparin that demonstrated a sevenfold increase in their ability to inhibit vWF-dependent platelet agglutination and vWF/platelet binding. The high vWF affinity heparin showed enhanced anti-factor Xa activity but comparable activated partial thromboplastin time activity. Chemical modification of a standard heparin by periodate oxidation and borohydride reduction enhanced its ability to inhibit platelet/vWF interactions by threefold, while eliminating more than 90% of its activated partial thromboplastin time and anti-factor Xa activity. Affinity chromatography of the chemically modified heparin yielded a heparin with an eightfold higher inhibitory potency than the original heparin. CONCLUSIONS Subspecies of heparin can be developed with significantly enhanced potency to inhibit vWF/platelet interactions. The vWF-inhibiting property of heparin can be dissociated from its antithrombin-binding activity. Based on a growing understanding of heparin/vWF interactions, combinations of affinity separations and chemical modifications could be designed to yield heparins uniquely suitable for prevention of arterial thrombosis.
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Affiliation(s)
- M Sobel
- Division of Vascular Surgery, Medical College of Virginia, Virginia Commonwealth University, Richmond, USA
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